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plastics pipe
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plastics pipe
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工学
塑料管材
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plastics pipe
塑料管材
塑料原料在通过由口模和芯模所组成的环型空隙时形成管状物,再经定型和冷却得到的表面光洁、尺寸及几何形状准确的塑料制品。
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