... water treatment chemical of Sodium Chlorite. 2.We also make BCDMH,DCDMH,BCDMH,DMH,2-chloropyridine We Yancheng Dilly Chemical Co., Ltd., ... come from Yancheng City Huaou Industry Ltd., Co.,it is belong to Yancheng City ... HUAOU industry Ltd.,CO., we also a ISO9001-2000 company, we are the biggest water treatment chemical of Sodium ...