????? ???? ????? ??????? Api600/Api 6d ???? ?????? - ???? ???? ???????
???? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?????? ????? ?????? ?? ???????? ??????? API600/API 6D? ??????? ?????? ????????? ?????? ?????? ????? ??????. ??? ????? ???????? ??????? ????? ????? ????????? ??? ???? ????? ??????? ??????? ?? ????? ?????????? ??? ?? ????? ??? ???????? ???? ?????? ??????? ??? ???? ???? ???????? ?????? ????? ???? ????? ???? ????? ????? ??????? ???????. ?? ?????? ?? ?????? ??????? ??? ?? ??? ??????? ???????? ???????? ??????? ????? ??????? ??????? ??????? ??? ???????? ??????? ????? ?????? ??????? ????? ?? ????? ???????? ?????? ???????? ??????? API600/API 6D ?????? ??? ?? ?????? ?????? ?? ??????? ???????? ????? ?????? ??????? ??????? ???????. ?? ??????? ??? ??????? ??????? ???????? ??????? ??? ??????? ??? ???? ?? ???????? ??????? ???? ?????? ??????? ????? ??????? ???? ????? ???? ???????? ????? ?????? ??? ?????? ????? ?????? ?????? ??????? ?? ?? Shijiazhuang Deye Piping Industries Co., Ltd. ??????? ?????? ????????? ???????? ????? ?????? ?????? ??