... design makes the assembling and the disassembling work convenient.It's more simple to set them up. 1,The peg grafting way ... assembly becomes, the assembling and dismantling simple. 2,About the column each 50mm has the hole, the baggage shelf ... 3,Widely applies to the factory, the warehouse. 4,The superficial static electricity spurts spreads, durable. The racking can be made ...