... the tail of this assembly line is made by 40X40 steel weld tube. Closed board is made by powder ... galvanized gas tube, stainless light board, tool hinge,nylon wheel, double light system, assembly line note board, test table, aluminum light ... ASUS, ACER, etc.PC production line is including basic assembling line, testing line, repairing line, aging line, packing line and other special equipment. We ...