1) High quality, fast delivery. 2) 1.5"~96" PN10/16 3) Senior and Professional Factory 4 )ISO9001:2008 and CE Certificate All kinds of valve:1)All kinds of butterfly vavle, check valve, gate valve and strainer.2)Reliable OEM factory, many patents3)High Quality, low Price, fast delivery, long servicelife 4)ISO9001:2008, CE, NSF, TS, WRAS Certificates industrial valves