COMPANY INSTRUCTUION Qingdao Zeruida Industry & Trade Co., Ltd. is located in Qingdao West Coast New Area, it is half an hour drive to Qingdao sea port. Which specialized in the production of tool carts and fiberglass/aluminium ladder for many years. The main products Aluminum hand trolley, steel wheelbarrow, garden cart, folding wagon and other tool carts. Meanwhile, we also provide customized products service accodi...