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pvc锟斤拷锟斤拷锟斤拷锟酵匡拷锟斤拷锟絚
pvc锟斤拷锟斤拷锟节诧拷锟较凤拷锟斤拷膯锟斤拷}锟斤拷要锟斤拷锟斤拷锟斤拷锟芥:锟斤拷葐锟斤拷}锟斤拷锟缴拷锟斤拷}锟皆硷拷锟斤拷锟絕锟斤拷锟絵锟斤拷
锟斤拷葐锟斤拷}锟斤拷锟斤拷锟斤拷指懈锟斤拷X锟斤拷锟斤拷锟斤拷锟斤拷要锟角达拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥時锟斤拷PVC锟斤拷锟较碉拷锟酵分加讹拷锟斤拷锟斤拷還锟叫撅拷锟角革拷锟截讹拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟斤拷锟斤拷囟雀锟锟斤拷锟街感曪拷锟斤拷锟絕軟锟斤拷也锟斤拷锟絏锟斤拷變锟斤拷锟斤拷锟斤拷
锟缴拷锟斤拷}锟斤拷PVC锟斤拷一锟絜透锟斤拷锟饺可分烇拷锟斤拷透锟酵筹拷透锟斤拷锟斤拷色膜锟斤拷锟斤拷锟絘(ch锟斤拷n)锟絕锟斤拷锟斤拷通锟絕锟斤拷锟斤拷色锟截侊拷锟斤拷變锟斤拷锟接碉拷锟缴锟斤拷锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟絳(di锟斤拷o)锟斤拷锟缴诧拷锟斤拷锟揭伙拷锟斤拷锟斤拷`锟斤拷锟斤拷
锟斤拷锟絕锟斤拷锟絵锟斤拷锟斤拷味锟斤拷锟絇VC锟斤拷锟斤拷锟斤拷锟斤拷铣煞锟斤拷泻锟斤拷写锟斤拷锟斤拷木锟斤拷锟斤拷锟较锟斤拷锟斤拷锟斤拷一锟斤拷锟侥氾拷味锟侥o拷PVC锟斤拷锟斤拷一锟姐都锟叫氾拷味锟斤拷锟节高溫狅拷B(t锟斤拷i)锟铰才曪拷锟叫讹拷锟斤拷
锟斤拷锟絇(gu锟斤拷n)锟結訊

