????? ??????? ???? AD ????? ?????? ?????? ????? ?? ???? ????? ? ???? ????? Yonggao ????????? ???? ???? AD ??? ?? ?? ??? 1993 ????? ?? ? ???? ???? ???? ????? ???? ?????? ??????? ??? ? ???? ???? ????? ???? ?????? ??????? ??? ???. ????? ???? ???? ? ???? ???? ????? ??? ????????????? ??????? ???????? ??? (SAC / TC48 / SC3) ? ???? ???? ???? ???????? ??????? ?????? ? ???? ???? ???? ????? ???? ????? ?????? ? ? ????? ???? ?? ??? "??" ???? ??? ??????? ?? ????? ??????. ??? ???? ?? ????? 8 ?????? 2011 ?? ???? ????? ?????? ???? ?? ?? ????: 002641 ??????? ?? ? ????? ????? ???? ????? ?????? ??? ?????? ???: Shanghai AD Building Materials Development Co., Ltd., Shenzhen Yonggao Plastic Industry Development Co., Ltd., Guangdong Yonggao Plastic Industry Development Co., Ltd., Anhui Yonggao Plastic Industry Development Co., Ltd., Tianjin Yonggao Plastic Industry Development Co., Ltd., Chongqing Yonggao Plastic Industry Development Co., Ltd., Taizhou Huangyan Jingjie Plastic Industry Development Co., Ltd., Ltd., Anhui AD Technology Development Co., Ltd., Ltd., Shanghai Yonggao Pipeline e Sales Co., Ltd., Yonggao (Shanghai) International Trade Co., Ltd., HunAD, Hunan Building Materials Co., ? ????? ???? ???? ????? ?? ????? ??????? ? ????? ?????? ???? ? ?????? ?? ????? 17493. ?? ??? ? ?? ??? ?????