???? ???? 300 ??? ???? ?????? ????????? ????????

?? ?????? ?????? 300LBS ???? ????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?? ???? ????? ???? ?????? ???? ??????? ?? ??????? ????? ?????? ????? ???????. ?? ????? ??? ?????? ?????? ?????? ????? ????? ????? ?? ?????? ?? ?????? ????? ?? ??????? ????????? ??? ?? ??? ????? ?????? ????????? ?????????? ?????? ?????? ??????? ??????? ??? ?????? ?? ???? ????? ??????? ??????? ??? ????? ???? 300 ???. ?? ????? ?????? ?????? ???? ???? ???????. ???? ?????? ????? ??????? ??????? ???? ???? ????? ????? ?????? ?? ??????? ???????? ??? ????? ???? ?????? ?? ??? ??????? ????????? ????????? ?????? ?????? ???? ???????? ????? ??? ?????? ?????? ???? ?????? ?? ?????? ????? ????? ??? ????? ????? ???? ?????? ????? ???????. ??? ?????? ?? ?????? ?? ??????? ??????? ?????? ????????? ??????? ????????? ????????. ??? ?????? ?????? ?? ????? ?????? ?????? ?????? ??????? ??? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ??????? ???????? ????????? ??? ?? ??? ???????? ????????. ???? ???? 300 ??? ??????? ?? ???? ????? ??????