fireproof cable tray specifications complete source manufacturers

cable tray surface is smooth, bridge automatic production line, the error is very small, workers wear the cable, not easy to scratch the cable standard size, solid structure, beautiful shape sheet for dip galvanized process, and no flower sheet, galvanized layer single thickness of 40g double to 80g, is conducive to prevent rust for the location of both wet and fire protection requirements, the use of fire type bridge, can show the benefits of this kind of bridge, but also can be used in no fire protection requirements.syi