?????? ????? ????? ?????? API600/API 6D ?? ??????? ???????? ???????

????? ?????? ??????? ?????????? ??????? ????? API600/API 6D ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ????? ?????? ????? ????? ?????? ????????? ??????? ????? ????? ?????? ??????????????? ?????????? ???????? ????????????? ???????? ??????? ???? ?????? ????? ????? ????? ??????? ?????? ????? ????? ?????? ????? ??????? ???? ????? ??????? ?? ??????. ?? ?????? ?????? ?? ??????? ??????? ????? ?????? ??????? ???????? ???? ?????? ????? ????? ????????? ??????. ????? ???????? ??????? API600/API 6D ????? ????? ?????? ???? ?????? ???????? ??? ???? ????? ?????? ?????????? ?? ????????? ??????. ???? ??? ????? ??? ????? ????? ?? ??? ?? ????? ??? ???????? ??????? ????? ?????? ????? ???? ??????. ?? ????? ??????????? ??? ??????? ???????? ???????? ??????? ??????? ????? API600/API 6D ????? ?????? ???? ???????? ??????? ??????? ??????? ?? ??? ?????? ??????????.