... N954 ISO9001 : 20005 ISO13485 : 2003About us:Shanghai Gangkai Purifying Products Co., Ltd was founded in 1993, for these years development ... manufacturers in China. Our factory locates in Songjiang, Shanghai with 20,000 square meters plant area for manufacturing ... we provide our customer best quality & high performance product . Factory Information:Address:5885 Beisong Road, Songjiang, Shanghai , P.R. ...