Qingdao Fangzheng Machinery Group Co. Ltd. ,an integrated and scientific enterprise,which was founded in 1995 as a manufacturer of motor air suspension systems, special motor axles and special vehicles, is focused on mechanical productions.The group has several branches(Qingdao Fangzheng Machinery Co. Ltd., Qingdao Fangzheng Motor Air Suspension Co.Ltd., Qingdao Fangzheng Special Motor Co. Ltd.), and a special laboratory is established to study and design motor suspension system.