Wing Chong Industrial (Group) Co. Perfect Transfer Cart, established in 2009 and headquartered in Hong Kong, focuses on the export of steel products Perfect Steerable Transfer Cartluding coil/sheets (HRC, CRC, GI, GL, PPGI, PPGL, pipes and tubes). Well-equipped Facilities. We have one pickling line, eight cold rolled lines, four galvanized lines, four pre painted lines and two pipe lines.