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DEMAGE plastic machinery Co,LTD is specialized in the production of series double screw&barrel,with its huge scale production and excellent equipment.In the original PTA nickel alloy spray corrosion resistance of the improvement and the development of a long wear-resisting,high corrosion resistance of the two big quality series screw.In a foreign country ,high corrosion,high fill PVC,sheet,pipe,sheet material,profile,wood and plastic,hang wall board,etc,the quality of our exclusive market screw to super dur...
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