Chongqing AD Pipeline Manufacturer ?? Chongqing Yongchuan District Xinglong Avenue 2408 ???? ??? ??? ? AD Building Materials Co., Ltd. ?? ????? ??????? ????? ???? ??? ????? ?? ??? ??? ? ?????? ???? ???? ????? ? ???? ??? ????? ?????? ??? ????? ?? ????? ?? ???????????? ??? ??????. ???????????? ???? ???? ????? ? ????? ????? ?? ????? ?????? ????? ? ?????? ?????? ?? ???? ???.

Chongqing AD Pipeline Manufacturer ?? ?? ?? ???? 17399989993 ??? ? ??? ????? ?? ?? ???? ??????.