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Qingdao Changlong Metal Products Co., Ltd. was established in 1954 as the largest sheet metal processing enterprise in Qingdao. It is located in Longquan Third Road of North Industrial Zone of Qingdao where the transformation is very convenient and geographical location is very predominant. The company occupies an area of 38000 square meters with standard modern workshop and top-ranking office facilities, the construction area is over 18000 square meters. rol laser cutting machine and numerical control turret lathe of advanced sheet metal processing method and the best electrostatic painting assembly line in Japan, 20 benders of various specifications, 22 plate shears, over 40 punches, among which there are 10 machines in 60 tonnage and 6 machines in over 80 tonnage, one hydraulic machine in 300 tonnage and one hydraulic machine in 1000 tonnage. And there is carbon dioxide gas protection welders and argon arc welders, advanced computer leveling uncoiling set and one 19 roller panel leveling machine. Adhering to "Quality comes first and customers are of first importance", the company is authorized by ISO9001 international quality system. The company insists "doing business on the basis of credit to gain mutual benefit"as tenet, follows enterprise concept of "ensuring quality to satisfy customers; aiming at excellence and successive management", now it has been widely praised. Credit and being enterprising is the soul of Changlong; quality credit is lifeline of Changlong; customers satisfaction is the goal of Changlong.