rigid vinyl pipe 中文意思是什麼
rigid vinyl pipe
解釋
硬聚氯乙烯管-
Standard specification for rigid poly vinyl chloride and chlorinated poly vinyl chloride compounds for plastic pipe and fittings used in nonpressure applications
非壓力應用塑料管及配件用硬質聚氯乙烯和聚氯乙烯化合物的標準規范
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