锟斤拷什么锟絰锟斤拷锟揭傦拷锟斤拷

 pvc锟斤拷锟斤拷?一聽锟斤拷锟紷锟斤拷(g锟斤拷)锟斤拷锟絶锟斤拷锟杰讹拷锟剿肯讹拷锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟剿帮拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫沒(m锟斤拷i)锟斤拷見锟絕(gu锟斤拷)锟斤拷锟絯锟侥达拷锟斤拷锟斤拷锟斤拷锟絔(m锟斤拷i)锟絜(cu锟斤拷)锟斤拷锟揭傦拷锟斤拷pvc锟斤拷锟接撅拷锟斤拷锟紷锟絅平锟斤拷锟斤拷锟絪锟斤拷锟斤拷拇锟斤拷锟�锟斤拷锟斤拷锟叫硷拷(x锟斤拷)锟斤拷锟诫看锟斤拷锟斤拷(d锟斤拷ng)锟斤拷去锟紿锟斤拷锟斤拷锟窖硷拷锟斤拷锟斤拷锟酵的時(sh锟斤拷)锟斤拷锟斤拷锟絜锟剿讹拷锟斤拷锟斤拷锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟酵巴碉拷锟斤拷锟较达拷锟酵禮锟斤拷锟斤拷锟斤拷锟斤拷s锟斤拷锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟絯锟斤拷锟斤拷锟絴(zh锟斤拷)锟叫的达拷锟斤拷———pvc锟斤拷锟斤拷锟斤拷锟統锟斤拷锟斤拷锟角憋拷锟斤拷锟斤拷锟接嗎？锟絰锟斤拷锟揭傦拷锟侥產(ch锟斤拷n)品锟斤拷(zh锟斤拷n)锟角沒(m锟斤拷i)锟絜(cu锟斤拷)锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟较筹拷锟斤拷品锟絴(zh锟斤拷)锟斤拷(y锟斤拷u)越锟斤拷锟角碉拷锟斤拷锟揭傦拷锟斤拷司锟斤拷pvc锟斤拷锟斤拷锟斤拷锟斤拷锟紷么锟斤拷(qi锟斤拷ng)锟斤拷锟斤拷锟斤拷锟紿锟紿锟斤拷平锟絩(sh锟斤拷)锟斤拷锟斤拷模锟斤拷锟竭�锟斤拷锟斤拷锟矫侊拷(l锟斤拷i)锟斤拷(d锟斤拷ng)锟絇锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絙锟狡�锟斤拷還锟叫革拷锟斤拷锟铰癸拷锟杰碉拷锟斤拷锟斤拷去探锟斤拷锟斤拷只锟斤拷锟斤拷锟诫不锟斤拷锟斤拷锟斤拷锟絔(m锟斤拷i)锟斤拷锟斤拷锟矫诧拷锟剿碉拷锟斤拷