???? ??????? 150LBS/300LBS ????????? ????????

??? ??????? ?????? ???? ??????? 150LBS/300LBS ???? ?????? ???? ?? ?????? ?????? ???? Shijiazhuang Deye Piping Industries Co., Ltd.. ?? ????? ?????? ??????? ?????? ??? ?????? ?? ???? ????? ?????? ?? ??????? ???????? ?? ???????? ????????? ??? ?? ????? ??? ???????? ???????? ????? ????? ??????? ??????? ????? ?? ?????????? ??? ?? ??? ??????? ???????? ?????? ?????? (HVAC)? ??????? ??????? ????????? ??????????? ???????. ????? ???? ??????? 150LBS/300LBS ?????? ????? ?????? ?????? ????????? ??????? ????????? ??? ?? ????? ???????? ????? ????? ?????? ????? ???????? ??? ???? ????? ??????? ?? ??????? ??????. ?? ??????? ????? ??? ?????? ????????? ??? ?????? ???????? ???? ?????? ?????? ??????? ????? ??? ???????? ???? ???? ?????? ???? ?????? ?????? ?????? ?? ?????? ????????? ????? ??????? 150LBS/300LBS ????? ??? ??? ????????. ???? ??? ????? ?????? ?????? ?? ?????? ??????? ?????? ??? ???? ?????? ????? ????????? ????????