... , CF3M, etc.Ball and Stem: SS304, SS316, SS304L, SS316L, etc.Valve Seat: PTFE / RPTFE / PCTFE / PEEK / DEVLON, etc.Operation: Manual, Above ... have obtained certificates of CE, ISO 9001:2008. Fuzhou Lilai Valve Fittings Co., Ltd.Quanzhou Xinglai Hardware-Founding Co., Ltd. 2pc ...