???? ????? Ggg40 - ?????? ??????? ???????? ??????? ?????? ????? ??????

???? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ???? ????? Ggg40? ?????? ????? ????? ?? ?? ????? ???????? ????????. ??? ?????? ???? ?????? ????? ?? ???? ?????? ??????? Ggg40? ??? ???? ??????? ???? ????? ?? ????????? ???????? ??????. ????? ???? ????? Ggg40 ?????? ??? ??? ????? ??????? ????? ????????? ??????? ??????? ??? ????? ??????? ????????? ?? ?????? ?????? ?????? ??????. ???? ?????? ????? ??????????? ???????? ?????? ?? ??????? ??? ???? ????? ?? ??????? ???????? ????????. ???? ?????? ??????? ???????? ?????? ?????? ???????? ???? ???? ????? Ggg40 ????? ??????? ?????? ???????? ????? ?????? ?????? ???? ???? ????? ?????? ??????? ?? ?? ????????. ??? ???? ????? ???????? ??? ?????? ?????? ????????? ?????????? ?????? ?????? ???????. ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd.? ??? ??????? ?????? ?????? ????? ?????? ???? ???? ?????? ?????? ??????????. ???? ??? ????? ?????? ?????? ?? ???? ????? Ggg40 ???? ???? ?? ???? ????? ???????? ?????? ??