???? ???? 3000PSI ???? ?????? ????????? ????????

?? ?????? ?????? 3000PSI ?????? ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ???? ???? ?????? ?????? ???? ??????? ????? ?? ????????? ????????. ??? ???????? ??????? ????? ??? ??????? ?? ????? ????? ?????? ???? ??? ??? 3000 ??? ??? ???? ?????? ??? ?????? ?????? ????????? ?? ????? ?????? ??????????????? ?????? ?? ???????? ???????. ???????? ??????? 3000 ??? ??? ???? ????? ?????? ?? ???? ?????? ????? ??????? ??????? ???? ?????. ??? ?? ???? ??????? ???????. ??? ?????? ?????? ?????? ?????? ?????? ?????? ????????? ??????? ??????? ????????? ????????. ???? ????? ?????? ??????? ???? ??? ???????? ??????? ???? ?????? ?? ?????? ??????? ??? ????? ?? ??????? ?????? ?????? ??????? ???????? ??? ???? ?? ????? ???????? ??????? 3000PSI ?????? ??? ?????? ???????? ??????? ????? ????????? ????? ????? ???????? ?????? ?????? ????????. ???? ??????? ?? ????? ?? ??????? ????? ???????? ??????? ?????? ??? ?????????? ??????. ???? ??? ????? ?????? ?????? ??? ???? ???????? ??????? 3000PSI ?????? ???