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Zhoushan Longwei Plastic Machinery Co., Ltd. is a China conical twin screw barrels manufacturers, is located in Jintang Town, Dinghai District, Zhoushan City, Zhejiang Province, China. Founded in 2004, the company is a well-known enterprise specializing in the design, development, production, and sales of single screw, barrel, and conical twin screw and barrel.

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