... Length: 6 m 9m 12m Qingdao Wefsun Metal Material Co., Ltd. located in the beautiful ... Qingdao Wefsun Metal Material Co., Ltd, Qingdao Sanshan Metal Material Co., Ltd, Qingdao Kaimingyuan International Trading Co., Ltd, Qingdao Wofeiteng Steel Pipe Co., Ltd and Qingdao Woming Steel Pipe Co ... trade, processing and distribution for one integrated company, which is the most resourceful company in Qingdao ...