???? ??????? ?????? ????? 250WOG | ?????? ????? ????? 250WOG

?? ???? ??????? ?????? ????? 250WOG ????? ???? ???? ?? ?????? ?????? Shijiazhuang Deye Piping Industry Co., Ltd.? ?? ?? ???? ?????? ?????? ?? ???? ??????? ???????? ?? ????????? ????????. ????? ?????? ????? ??? 250WOG (????? ?????? ??????)? ??? ????? ??????? ??????? ????? ?? ???? ???????? ??? ????? ?? ?????? ????? ???? ??????? ??? ?? ????? ???? ??????? ??? ????????? ???? ????? ????? ?????? ?????? ??????. ???????. ??? ???? ???? ??? ???? ???? ?????? ??? ?????? ?????? ?? ???????? ??????? ????? ???????? ??? ?????? ?????? ??????? ????? ?????? ???????? ??????. ?? ?????? ?????? ??????? ????? ?????? ?????? ?????? ??????? ?? ??????? ??????? ?????? ???? Shijiazhuang Deye Piping Industry Co., Ltd. ?????? ?????? ????? ?????? ????? ????? ?????????. ???? ???? ??????? ?????? ????? 250WOG ??????? ?? ????? ???? ?????? ?????? ????????? ?????? ?? ??????? ????????