Our company, Arita Valve (Tianjin) Co.,Ltd, which specializes in butterfly valve, check valve, gate valve, ball valve, etc. located in Tianjin, China. And we have enough strength to provide valves to many well-known companies worldwide. To our valves, we strictly adopt the standard of ISO, ASTM, API, ANSI, BS, JIS and other international standards. And also, we have our own letters patent and the authoritative certificate of ISO9001:2000 and CE issued by DNV.