锟斤拷前位锟矫ｏ拷pvc锟斤拷锟斤拷 >>锟斤拷聞锟斤拷锟斤拷 >> 锟斤拷聞锟斤拷(n锟斤拷i)锟斤拷
CPE锟斤拷锟絙锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷(y锟斤拷u)锟絚锟斤拷
锟絊锟斤拷锟紽(xi锟斤拷n)锟节帮拷锟絙锟斤拷锟斤拷使锟斤拷越锟斤拷越锟洁，锟斤拷锟斤拷锟铰诧拷锟较碉拷锟絓锟斤拷锟斤拷锟接囷拷锟今，达拷锟斤拷锟绞癸拷锟紺PE锟斤拷锟絙锟斤拷锟絩锟斤拷锟斤拷锟剿斤拷锟斤拷锟斤拷w锟斤拷什么锟斤拷(y锟斤拷u)锟絚么锟斤拷志锟紻锟斤拷锟絙锟斤拷品锟斤拷锟睫癸拷司CPE锟斤拷锟絙锟斤拷锟斤拷锟絍锟斤拷锟斤拷
CPE锟斤拷锟絙锟斤拷锟斤拷锟缴撅拷锟斤拷烯锟斤拷锟较斤拷(j锟斤拷ng)锟斤拷岙愶拷锟斤拷锟饺★拷锟斤拷锟斤拷锟(y锟斤拷ng)锟斤拷取锟斤拷锟絯锟絊锟斤拷锟较★拷
CPE锟斤拷锟絙锟斤拷锟侥凤拷散锟皆好ｏ拷锟斤拷锟斤拷锟斤拷锟饺碉拷锟斤拷通锟斤拷锟斤拷锟絙锟斤拷锟斤拷(y锟斤拷u)锟斤拷锟斤拷锟絞锟斤拷也锟杰好ｏ拷锟絴锟叫綿軟锟斤拷
通锟斤拷锟斤拷锟皆革拷锟叫檔锟斤拷锟斤拷品锟斤拷锟絙锟斤拷
目前锟斤拷锟斤拷锟斤拷品锟斤拷锟絙锟矫碉拷占锟斤拷锟絕锟斤拷锟斤拷占锟斤拷锟斤拷锟斤拷苿锟斤拷話锟絀(l锟斤拷ng)锟津。漸锟絬锟斤拷锟叫囷拷锟斤拷锟叫檔锟斤拷品也锟斤拷锟斤拷锟絰CPE锟斤拷锟絙锟斤拷锟斤拷锟斤拷锟斤拷锟狡凤拷锟斤拷e锟斤拷锟斤拷I(y锟斤拷)锟斤拷品锟斤拷(y锟斤拷u)锟斤拷锟絚锟接勢ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絘(ch锟斤拷n)锟斤拷锟斤拷模锟斤拷r锟絏锟斤拷一锟斤拷锟侥冿拷(y锟斤拷u)锟絚锟斤拷
锟斤拷锟絇(gu锟斤拷n)锟結訊