Can the foam sandwich be used as a cleaning plate?
In addition to the thickness, bending, corrosion does not meet the standard can not be used, there is no relevant specific provisions, buckle raft Gong Gong folder slander attack Wei Wei Shan pieces of steel pipe scaffolding is the advantage of re-use, easy disassembly, this problem a bit strange
According to the "construction of fasteners steel scaffolding safety technical specifications" JGJ
