{"id":24296,"date":"2026-09-07T14:17:11","date_gmt":"2026-09-07T06:17:11","guid":{"rendered":"https:\/\/believeindustry.company\/?p=24296"},"modified":"2026-09-24T14:19:36","modified_gmt":"2026-09-24T06:19:36","slug":"electrical-roll-forming-machines","status":"publish","type":"post","link":"https:\/\/believeindustry.company\/ms\/electrical-roll-forming-machines\/","title":{"rendered":"Electrical & Power Industry Roll Forming: Cable Tray & Busway Profiles"},"content":{"rendered":"
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An electrical roll forming machine turns steel coil into the cable trays, busway housings, conduit channels, and transformer panels that power distribution networks are built from. One line can supply a cable tray plant, a switchgear builder, and a transformer workshop from the same coil stock.\u00a0Roll forming machine lines<\/a>\u00a0with cassette tooling make that spread possible.<\/p>

Short answer:<\/strong>\u00a0An electrical roll forming machine is a roll forming line configured to produce power distribution profiles: cable tray (ladder, trough, solid bottom, and wire mesh), busway enclosure housings, electrical conduit channels, and transformer tank panels. These machines run pre galvanized, hot dip galvanized, or stainless coil at 12 to 35 m\/min and punch NEMA standard slots in line.<\/p>

Why Power Projects Buy Roll Formed Profiles<\/h2>

Power infrastructure consumes steel at a steady rate. Cable trays carry low and medium voltage cable through substations, plants, and data centers. Busway housings route high amperage power between transformers and switchgear. Conduit channels protect branch circuits. Transformer tanks need corrugated panels that radiate heat.<\/p>

Service centers sell these profiles cut to length. That works for a single substation job. It fails for a cable tray manufacturer shipping container loads every month. Margin lives in forming the coil yourself.<\/p>

Three numbers explain the shift:<\/p>

  1. Cost per meter.<\/strong>\u00a0Forming from coil cuts profile cost 20 to 40 percent against purchased cut lengths.<\/li>
  2. Length freedom.<\/strong>\u00a0Cable tray straight sections ship in 3 meter lengths by standard, but EPC projects often ask for custom runs. In house forming answers without a supplier round trip.<\/li>
  3. Slot control.<\/strong>\u00a0NEMA and IEC slot patterns differ by market. A punching press wired to your own line adapts in an afternoon.<\/li><\/ol>

    The\u00a0mesin membentuk gulungan dulang kabel<\/a>\u00a0is the anchor product in this category, and demand keeps growing with data center and grid investment.<\/p>

    Four Power Distribution Profiles<\/h2>

    1. Cable Trays: Ladder, Trough, Solid Bottom, Wire Mesh<\/h3>

    Cable tray is the volume product. Ladder type carries heavy cable runs on two side rails with rungs. Trough type adds a ventilated bottom. Solid bottom (also called conduit tray) encloses the cable fully. Wire mesh tray bends from cold drawn wire instead of coil and serves light duty installs.<\/p>

    Roll forming covers the first three. Side rails form from 1.5 to 2.5 mm coil with a return flange that adds stiffness without weight. The\u00a0IEC 61537<\/a>\u00a0standard defines how tray load capacity is tested, and most export tenders reference it directly.<\/p>

    NEMA classes matter for the US market. Class 20B tray handles light duty spans, Class 20C and 20D take heavier cable at longer support spacing. A\u00a0mesin membentuk gulungan dulang kabel<\/a>\u00a0set up for 20C sections covers the tender volume most EPC buyers need.<\/p>

    Regional slot patterns are the hidden spec. Middle East projects follow NEMA hole patterns with galvanized finish per project specs. Our\u00a0cable tray machine Middle East buy guide<\/a>\u00a0breaks down those requirements market by market.<\/p>

    2. Busway Enclosure Housings<\/h3>

    Busduct and busway systems route 800 to 6,300 ampere feeders between transformers and main switchgear. The housing is a roll formed channel that clamps around insulated bus bars and doubles as the ground path.<\/p>

    The profile needs a tight fold and consistent cross section, because bus bars stack inside with fixed clearance. Most housings form from 1.2 to 2.0 mm pre galvanized or aluminum zinc coil. Housing lengths join end to end, so cutoff cut quality matters: a burr at the joint scratch damages the bar insulation during assembly.<\/p>

    3. Conduit Channels and Strut Channel<\/h3>

    Strut channel is the mounting skeleton of every electrical room. Cable tray hangers, conduit clamps, and panel supports all bolt to 41 mm strut. The\u00a0mesin membentuk gulungan saluran strut<\/a>\u00a0producing it runs continuous in line perforation so fitters can position hardware anywhere along the channel.<\/p>

    Conduit channels for branch circuit protection form from thinner coil, 0.8 to 1.5 mm, often pre painted in indoor environments. Both profiles share tooling logic with cable tray rails, which is why multi profile cassette mills dominate this market.<\/p>

    4. Transformer Tank Panels and Radiator Elements<\/h3>

    Distribution transformers shed heat through corrugated tank walls. The corrugation pattern is roll formed into 1.0 to 1.5 mm cold rolled steel, then welded into the tank and filled with oil on both sides. Fold depth and pitch control the radiator surface, so the profile tolerance is tighter than structural work: forming stands hold the fold depth within a fraction of a millimeter.<\/p>

    Panel shops that form their own radiator corrugation control transformer pricing directly. It is a smaller volume market than cable tray, but margins run higher and competition is thinner.<\/p>

    Profile and Machine Matching<\/h2>
    Profil<\/th>Ketebalan Gegelung<\/th>Kelajuan Talian Lazim<\/th>Jenis Mesin<\/th><\/tr><\/thead>
    Cable tray side rails<\/td>1.5 to 2.5 mm<\/td>15 hingga 25 m\/min<\/td>Tray rail mill with servo punching<\/td><\/tr>
    Cable tray bottoms<\/td>0.8 hingga 1.5 mm<\/td>20 to 30 m\/min<\/td>Tray bottom mill<\/td><\/tr>
    Busway housing<\/td>1.2 to 2.0 mm<\/td>12 to 20 m\/min<\/td>Cassette mill with tight tolerance stands<\/td><\/tr>
    Saluran strut<\/td>1.5 to 2.5 mm<\/td>20 to 35 m\/min<\/td>Strut mill with in line perforation<\/td><\/tr>
    Conduit channel<\/td>0.8 hingga 1.5 mm<\/td>20 to 30 m\/min<\/td>Light gauge cassette mill<\/td><\/tr>
    Transformer radiator panels<\/td>1.0 to 1.5 mm<\/td>10 to 18 m\/min<\/td>Corrugation mill with precision fold control<\/td><\/tr><\/tbody><\/table>

    Steel and Coating Choices<\/h2>

    Electrical environments attack steel differently than farm or construction sites. Indoor switch rooms stay dry for decades. Outdoor substations, petrochemical plants, and coastal generation sites chew through thin coatings.<\/p>
    Environment<\/th>Recommended Coating<\/th>Service Life<\/th><\/tr><\/thead>
    Indoor switch rooms and panel shops<\/td>Pre galvanized Z180 to Z275<\/td>20+ tahun<\/td><\/tr>
    Industrial plants (dust, moisture)<\/td>Hot dip galvanized after fabrication, Z275<\/td>20 to 25 years<\/td><\/tr>
    Outdoor substations<\/td>Z275 to Z350, optional polyester top coat<\/td>25+ years<\/td><\/tr>
    Petrochemical and coastal sites<\/td>Stainless 304 or hot dip plus duplex coat<\/td>30+ tahun<\/td><\/tr><\/tbody><\/table>

    Coating weight follows the\u00a0ASTM A653<\/a>\u00a0standard, which defines galvanized grades by coating mass per square meter. Put the coating weight in the purchase contract, not in an email thread.<\/p>

    Coil grade matters as much as coating. Return flanges on tray rails work harden the steel at the fold, and low grade coil cracks there. Our guide on\u00a0how to select steel coil for roll forming<\/a>\u00a0covers yield strength and mill tolerance for exactly this reason.<\/p>

    Coil width errors waste material on every profile. Cable tray rails in particular need tight width control because the return fold consumes a fixed allowance. The\u00a0coil width calculation guide<\/a>\u00a0shows how to set blank width before the first test run.<\/p>

    What an Electrical Roll Forming Line Includes<\/h2>

    A complete line has five stations:<\/p>

    1. Decoiler.<\/strong>\u00a0A 3 to 5 ton capacity decoiler feeds the mill. Double arm models cut coil change downtime in half.<\/li>
    2. Leveler.<\/strong>\u00a0Valuable for 2 mm rail coil, where flatness drives slot alignment after forming.<\/li>
    3. Roll forming mill.<\/strong>\u00a014 to 24 stands depending on profile depth. Cassette tooling swaps tray rails for strut or busway housing without rethreading.<\/li>
    4. Punching press.<\/strong>\u00a0A servo press punches NEMA slots, cable tray knockouts, and strut perforations on the fly. Punch speed sets the real line speed on tray rails.<\/li>
    5. Cutoff and stacking.<\/strong>\u00a0Flying die or servo tracked cutoff gives clean, burr free ends. Busway housing tolerates no burrs at the joint face.<\/li><\/ol>

      Buyers who run one mill across tray, strut, and conduit profiles ask how to keep changeover time down. The\u00a0coil changeover guide<\/a>\u00a0covers setup routines that trim hours to minutes.<\/p>

      Data centers deserve a separate note. A hyperscale campus installs cable tray by the kilometer and upgrades it every few years. The\u00a0mesin pembentuk gulung pusat data<\/a>\u00a0guide covers raised floor and containment profiles that pair with tray production on the same mill.<\/p>

      Production Planning for a Multi Profile Shop<\/h2>

      A single cassette mill serving four profile families keeps a shop busy year round. One practical schedule:<\/p>
      Quarter<\/th>Main Product<\/th>Output Target<\/th><\/tr><\/thead>
      Q1<\/td>Cable tray rails and bottoms<\/td>60,000 m<\/td><\/tr>
      Q2<\/td>Strut channel for EPC orders<\/td>45,000 m<\/td><\/tr>
      Q3<\/td>Busway housing for switchgear contracts<\/td>30,000 m<\/td><\/tr>
      Q4<\/td>Transformer panels and export tray orders<\/td>35,000 m<\/td><\/tr><\/tbody><\/table>

      Grid investment peaks follow government budgets, not seasons. Trimming the mill between product families is cheaper than idling a second line, which is the core argument for cassette tooling in this category.<\/p>

      Common Buying Mistakes<\/h2>

      Buying a tray machine that only forms tray.<\/strong>\u00a0A dedicated tray mill is fast and inflexible. Cassette tooling costs more upfront and covers busway and strut demand when tray orders slow down.<\/p>

      Ignoring punching speed.<\/strong>\u00a0NEMA slot patterns put a hole every 50 to 100 mm on tray rails. A hydraulic press that pulses too slow throttles the whole line no matter how fast the mill runs.<\/p>

      Skipping the load test.<\/strong>\u00a0Tray that fails the IEC 61537 span test in the field costs a full shipment recall. Ask the machine builder for a load test video with certified weights before ordering.<\/p>

      Treating burrs as cosmetic.<\/strong>\u00a0Cable insulation abrades against sharp tray edges for 25 years. Burr free cutoff is a product requirement, not a finish detail.<\/p>

      Ordering thin coating for outdoor work.<\/strong>\u00a0A substation buyer who receives Z180 instead of Z275 sees rust within five years. Put coating weight in the contract.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Frequently Asked Questions of Electrical Roll Forming Machine<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      <\/i><\/span><\/i><\/span>What profiles can an electrical roll forming machine produce?<\/span><\/i><\/div>

      Standard outputs include cable tray side rails and bottoms (ladder, trough, and solid bottom types), busway and busduct enclosure housings, strut channel, conduit channels, and transformer tank radiator panels. Cassette tooling lets one mill switch between families in 2 to 3 hours.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>How fast does an electrical roll forming machine run?<\/span><\/i><\/div>

      Light profiles such as tray bottoms and conduit channels run 20 to 30 m\/min. Tray rails and busway housing run 12 to 25 m\/min. Actual output depends on punching density more than mill speed.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>What steel does cable tray production need?<\/span><\/i><\/div>

      Pre galvanized or hot dip galvanized coil from 0.8 to 2.5 mm depending on the profile. Rail sections use 1.5 to 2.5 mm for NEMA Class 20C and above loads. Coastal and petrochemical projects call for 304 stainless. Coating weight should follow ASTM A653 and be written into the contract.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>What is the difference between NEMA and IEC cable tray standards?<\/span><\/i><\/div>

      NEMA VE 1 defines tray classes by load and span for the North American market. IEC 61537 defines load testing for international tenders. Both reference the same physics, but the slot patterns and documentation differ, so confirm which standard the tender cites before setting up the punching pattern.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>How much does an electrical roll forming machine cost?<\/span><\/i><\/div>

      A single profile tray line starts near 45,000 USD. A cassette based multi profile line covering tray, strut, and busway runs 90,000 to 160,000 USD. Fully automated lines with servo punching and stacking exceed 200,000 USD.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>Can one machine serve a cable tray plant and a switchgear builder?<\/span><\/i><\/div>

      Yes. Cassette tooling swaps tray rail cassettes for busway housing cassettes in hours. Shared decoiler, punching press, and cutoff keep the investment low. Punch tooling changes faster than roll cassettes.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>Why does busway housing need tighter tolerances than tray?<\/span><\/i><\/div>

      Insulated bus bars stack inside the housing with fixed clearance. A fold that drifts out of tolerance jams the bar assembly at the joint. Housing mills use more stands at smaller fold increments to hold the cross section.<\/p><\/div>\n\t\t\t\t\t<\/div>

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      <\/i><\/span><\/i><\/span>What installation support do you provide?<\/span><\/i><\/div>

      Believe Industry ships lines with video guided installation, remote commissioning, and operator training. Most lines reach full production within two weeks of arrival. Export documentation covers destinations across the Middle East, Southeast Asia, Africa, and Latin America.<\/p><\/div>\n\t\t\t\t\t<\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Kesimpulan Utama<\/h2>
      • An electrical roll forming machine produces four core power distribution profile families: cable tray, busway housing, conduit and strut channel, and transformer radiator panels.<\/li>
      • Cable tray is the volume product; transformer panels are the margin product. Cassette tooling lets one mill serve both.<\/li>
      • NEMA slot patterns and IEC 61537 load testing decide export tender eligibility. Confirm the standard before ordering punch tooling.<\/li>
      • Coating choice, not machine speed, decides profile life. Write ASTM A653 coating weights into the contract.<\/li>
      • Punching speed sets real line output on tray rails. Size the servo press before the mill.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        Kemas kini terakhir:<\/strong> 2026-09-07<\/p>

        Log Perubahan Artikel<\/strong><\/p>

        • 2026-09-07: First version. Covered four power distribution profiles, machine matching table, steel coating guide, standards comparison, and production planning.<\/li><\/ul>

          Pencetus Ulasan Seterusnya<\/strong><\/p>

          • NEMA or IEC cable tray standard revision<\/li>
          • New busway voltage class released by a major switchgear manufacturer<\/li>
          • Stainless coil price shift above 15 percent<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

            An electrical roll forming machine turns steel coil into the cable trays, busway housings, conduit channels, and transformer panels that power distribution networks are built from. One line can supply a cable tray plant, a switchgear builder, and a transformer workshop from the same coil stock.\u00a0Roll forming machine lines\u00a0with cassette tooling make that spread possible. […]<\/p>\n","protected":false},"author":1,"featured_media":24299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"page_builder":"","_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[607845018],"tags":[],"class_list":["post-24296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-roll-forming-machine"],"blocksy_meta":[],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9K5n8-6jS","jetpack_likes_enabled":false,"jetpack-related-posts":[{"id":23405,"url":"https:\/\/believeindustry.company\/ms\/data-center-roll-forming-machines\/","url_meta":{"origin":24296,"position":0},"title":"Mesin Pembentuk Gulungan Pusat Data: 5 Profil Penting untuk 2026","author":"Darren Mao","date":"Julai 6, 2026","format":false,"excerpt":"Global data center construction spending crossed $250 billion in 2025. 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Setiap susunan PV memerlukan rel struktur. Rel tersebut ialah saluran berbentuk gulung dengan lubang tebuk untuk pengapit dan pendakap. Mesin ini menjalankan jalur rata melalui dekoil, aras, tebuk,\u2026","rel":"","context":"In "Roll Forming Machine"","block_context":{"text":"Roll Forming Machine","link":"https:\/\/believeindustry.company\/ms\/category\/roll-forming-machine\/"},"img":{"alt_text":"Solar Channel Roll Forming Machine_ 7 Powerful 2026 Specs","src":"https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2026\/07\/Solar-Channel-Roll-Forming-Machine_-7-Powerful-2026-Specs.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":9078,"url":"https:\/\/believeindustry.company\/ms\/russiain-cable-tray-roll-forming-machine-video\/","url_meta":{"origin":24296,"position":5},"title":"Video Mesin Pembentuk Gulung Dulang Kabel Rusia","author":"Darren Mao","date":"Mei 16, 2023","format":false,"excerpt":"Russian Cable Tray Roll Forming Machine Video will show you how the roll forming machine working for cable trays for Russian Market. The machine is able to produce cable trays width from 100-600 mm width the ends shrinked for easy joint. The Roll Forming Machine Line is consist of Uncoiler\u2026","rel":"","context":"In "Roll Forming Machine"","block_context":{"text":"Roll Forming Machine","link":"https:\/\/believeindustry.company\/ms\/category\/roll-forming-machine\/"},"img":{"alt_text":"Russian Cable Tray Roll Forming Machine Video","src":"https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2023\/05\/92j8oi4vl0q.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2023\/05\/92j8oi4vl0q.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2023\/05\/92j8oi4vl0q.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2023\/05\/92j8oi4vl0q.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/believeindustry.company\/wp-content\/uploads\/2023\/05\/92j8oi4vl0q.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/believeindustry.company\/wp-content\/uploads\/2026\/09\/Electrical-Roll-Forming-Machines-4-Power-Distribution-Profiles-2026.png","_links":{"self":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/posts\/24296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/comments?post=24296"}],"version-history":[{"count":6,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/posts\/24296\/revisions"}],"predecessor-version":[{"id":24304,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/posts\/24296\/revisions\/24304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media\/24299"}],"wp:attachment":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media?parent=24296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/categories?post=24296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/tags?post=24296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}