PVC rigid plastic pipe pvc硬质塑料管
rigid pvc pipe 硬质聚氯乙烯管
rigid-pvc pipe rpvc管材
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The abnormal phenomenon often existing in the production of the rigid PVC pipe, the reason and its solving method are put forward.
同时提出了硬质聚氯乙烯管材生产中经常出现的异常现象及其形成原因和解决办法。
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