Qingdao Changtaisheng Metal Products Co., Ltd. established in 2011, which the former was Qingdao Changlong Metal Products Co., Ltd. (founded in 1954), is the largest sheet metal manufacturing enterprise in Qingdao. The company is located on the third Longquan Industrial Park Road in the north of Qingdao, with a convenient transportation and favorable geographical position .Enterprise has plant and first-class office facilities in modern standards, construction area of 18000 square meters in the ...