???? ???? BSPT ???? ?????? ????? ????? | ????? ????

?? ???? ?? ???? ???? BSPT ????? ?????? ?? ???? ??? ???? ?? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ??? ?? ????? ?????? ?????? ????? BSPT ?????? ??? ?????? ???? ????????? ??? ???? ?????? ?????????? ??? ????? ??????? ??????? ????? BSPT ?????? ??? ?????? ??????? ????? ?? ?????????? ??? ?? ??? ??????. ????? ????????? ???????? ???????????? ????? ?? ???. ?????? ?? ???? ????? ??????? ???????? ??????? ?????? ?????? ?????? ?????? ?????? ??????? ???????? ??? ?????? ?????? ??????? ??????? ??????? ?? ????? ???? ?????? ???? ?????? ????? BSPT ?????? ??? ??????? ????? ???????? ??????? ???? ?????? ?????? ?? ??????. ?????? ?? ?????? ?????? ?? ??????? ??????????? ?????? ????? ???????? ??????? ?????? ???????? ???????? ?? Shijiazhuang Deye Piping Industry Co., Ltd.? ??? ??????? ?????? ?????? ????? ?????? ????? ????? ??????. ?? ??? ?????? ???? ???????? ???? ????? BSPT ????? ??. ???? ??? ????? ????? ?? ?????????