Screw Barrel, Granulation Screw Barrel, Conical Twin Screw Barrel manufacturer / supplier in China, offering Bimetallic Conical Twin Screw Barrel for PVC Mixed High CaCO3 Additive 99, Bimetallic Conical Twin Screw Barrel for PVC Mixed High CaCO3 Additive 98, Bimetallic Conical Twin Screw Barrel for PVC Mixed High CaCO3 Additive 97 and so on.
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