???? ??????? API 600 / API 6D ???? ?????? ????????? ???????
???? ??????? API 600 / API 6D ?? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ???? ???? ?????? ???? ?????? ?? ???? ????? ?????? ?? ??????? ?? ????? ???????? ????????. ?? ??????? ????? ??? ??????? ???????? ?? ????? ?????? ??????? ??? ????? ??????? ????? ?????? ?????? ??????? ???????? ??? ?????? ?????? ????????? ?? ?????? ????? ?????? ??????????????? ?????? ??????? ???? ??????? API 600 / API 6D ??? ?????? ????? ????????? ??????? ???? ????? ???? ??????? ???????? (API)? ??? ???? ???????? ??????? ?????? ???????. ????? ??? ???????? ?? ?????? ?????? ?? ??????? ???????? ????? ???????? ??? ???? ???????? ?? ????? ??????? ??????? ???????. ???? ?????? ???????? ??????? ?????? ????? ???????? ???????? ???????? ??????? ??????? ?????? ?????? ???? ?????? ????? ????? ????. ???????? ??? ???? ??? ????? ?????? ??????? ????? ??? ???? ????? ??? ?????? ???? ?????? ?? ??? ??????? ???????? ?????? ?? ??????? ????????
