??????? ????? ??? Api6a ?? ????? - ???? ??????

????? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ????? ???? API6A ????? ?????? ?????? ????????? ??????????????????. ????? ??????? API6A ?????? ??? ???????? ???? ??????? ??? ????? ????? ????? ?????? ?????? ??????? ??????? ??? ?????? ?????? ????????? ?? ????? ?????? ????? ?????? ??????????????? ??????? ?????????? ??????. ????? ??????? API6A ?????? ??? ??????? ????? ?? ??????? ??????? ????? ?????? ??????? ??? ???? ?????? ??? ????? ?????????? ??????? ????????. ????? ???????? ???? ????? ?????? ?????? ???? ??????? ???????? (API)? ??? ???? ????????? ???????. ???????? ??? ??????? API6A ????????? ???? ????? ????? ????? ????? ?????? ????????? ?????????? ???????. ????? ?????? ?? ????????? ??? ?????? ?????? ?????? ????? ?????? ????? ????? ?? ???? ???. ???? ??? ????? ??? ??????? API6A ?????? ?? ???? ?????? ??? ???? Shijiazhuang Deye Piping Industries Co., Ltd. ?? ????? ??????? ??????? ???????? ????? ??????. ????? ???? ????? ?????? ?????? ?? ?????? ?????? ??????? API6A ?????? ???.