でき事はトラスをボルトで固定する

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{"cid":"144267","pid":"24753598","pimg_url":"\/\/img1.tradegrowthhub.com\/fc\/29\/75137f19d229\/product\/86169664_s-w400xh400.jpg","name":"High Quality Aluminum Roof Truss Aluminum Ignition Step Truss System On Sale","attrs":{"\u4fa1\u683c":"Negotiable","MOQ":"1 Meter","\u7d0d\u671f":"Negotiable","\u30d6\u30e9\u30f3\u30c9":"ICTC TRUSS"}}

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