
????? ???????????
        
       ?? ?? ????? ??????? PVC ?
                
            ???? ?? ??????? ?????? ?? ?? ?????? ????? ???????: ?? / T 5836-2006 ??????? ???????? ? ?????? DN20-DN300 ??????? ????? ?...
                ??? ????????  ????? ?? PVC-U ????? ????? ???? ?????
                
            ???? ?? ???? ?????? ?????? ?? ????? ?????? ??-U ????? ????? ???? ????? ? ?????? ???? ????? ?????? ???? ???? ?????? ?? / ...
                ??? ????????  ????? ??? ????? ????? ?????: ?????? ???? ?????? ????? ????? ????????? | ???? ???
                
            ?? ?????? ?????? ??????? ?????????? ??????? ???????: ????? ???? ?????? ???????? (????? ????? ? ??????? ?????? DN300-DN12...
                ??? ????????  ???? ???? ???????? ?????? ?????? ???? ??? ???????? ?????????? PVC ?
                
            ????? ???? ?? ?? ?? ???????? ?????????? ??? ??????? ???????? ??????????? ????????: ?? ???? ?? / T 14823.2 ????? ???? ???...
                ??? ????????  PVC ????? ?????? ?????? ???????? 110MM ?????? ??????: ?????? ?????? ???? ??????
                
            ???? Hubei AD Building Materials (17399989993) ???????? ??????? ?????? ?????? PVC 110mm ?? ????? ??????  8kN / m 2 ? ???...
                ??? ????????  HDPE ???? ???? ????? ?????? ????? ??? ??? B (????? ?????) ??? ????
                
            Tel: 17399989993 HDPE ???? ????? ???? ??? ??? ????? B (????? ?????) ????? ????? ?? ?????? ? ????? ?????? ??? ??? SN8-SN2...
                ??? ????????  ??? ???? ?? HDPE ???? ????? ???? ????? ?????? ????????
                
            Tel: 17399989993 HDPE ????? ???? ???? ????? ?????? ???????? ????? ???? ????? ???? ???? ??????? ????? ?? ? ?????? ???? ??...
                ??? ????????  PVC ???? ???????? ?????? ??????
                
            "???? ?? ???? ?????? (17399989993) ???? ????? ???? ?? ???? ?????? ?????? ????? ? ?????? φ 16-50 50 ?????? ????? ????????...
                ??? ????????  ???????? ??????? ?????? ?????? HDPE ????? ???????? ??????? ?????? ?????? PVC: ??
                
            ???? ?? ???? ?????? (17399989993) ?????? ??????? ?? ??? ? ?? ?????? ?????? ?????? ???????? ???????? ??????????: ?? -40 ℃...
                ??? ????????  ????? ??? ?? ???? ?????? ?????? ?????? ?????? ???? ????? ??? ?????? ? ????? ????
                
            ???? ???? Hubei AD Building Materials (173-9998-9993) ???????? ????? ??? ???????? ???????? ??????? ????????? ??? ??????:...
                ??? ????????  ????? ?????? ????? ???? ??????
                
            ???? ?? ???? ?????? (173-9998-9993) ???? ?????? ??????? ?????? ?? ??? ?????? ?????? ?????? ???????? ???? ????? ????????:...
                ??? ????????  CPVC ?????? ????? ????? ??????? ??????
                
            ???? ?? ???? ?????? ???? ???? ?????? ?????? ?????? ??????? ??????? ?????: ??? ?? ??? 50-φ 200 ????? ??? ?????? ??? ? ???...
                ??? ????????