injection-moulded pvc pvc 中文意思是什麼
injection-moulded pvc pvc
解釋
射出-
Pipe joints and their elements for pipes of unplasticized polyvinylchloride unplasticized pvc under pressure ; sockets reducing of injection moulded for cold welding, dimensions
未增塑聚氯乙烯受壓管道的管道連接件及其元件.第9部
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