国产中文字幕手机视频_亚洲性无码av在线欣赏网_久久96热在国产精品10_人妻无码视频一区二

Product features

Used for PVC pipe, C profile (doors and Windows), wood plastic, foaming, granulation and other extruder

Flat twin-screw barrel - Parallel twin-screw barrel

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Series of other products