PVC聚氯乙烯,[计] 永久虚电路
PVC infusion package聚丙烯
PVC leather suitcase人造革箱
PVC-U steel windows塑料窗
PVC-U service pipes硬聚氯乙烯给水管道
PVC by calcium carbide电石法PVC
PVC-AC floor coating氯醋地板漆
PVC membrane electrode[化] PVC膜电极
PVC heat shrinking film热缩膜
PVC by suspension method悬浮法聚氯乙烯
PVC leather shoulder bag人造革背包