Established in 2001, Dipper Valve CO, LTD is one of the most important professional manufacturing bases of PIG ball valve, axial flow check valve, slurry ball valve, ESD valve, double-sealed rail valve and other high or middle pressure valve (as you required) in China. Our products have been successfully applied to fields like Petroleum, natural gas, petrochemistry, chemical industry, pulp, electric power, light industry, food and coal to oil etc. In the past years , we have successfully provided SHELL, BP, PHILLIPS, CNPC, CNOOC, CAOSC, VOPAK, SINOCHEM, VOPAK, and Nippon Oil with a great deal of products. We get a high reputation for our good quality, reasonable prices, prompt delivery , efficient and good service in the national and oversea market. Our certificates(some of them) API 6D CE Manufacture license of special equipment NO:TS2710170-2013 DNV ISO9001:2000 NO:0234-2002-AQ-RGC-RVA ABSG API 607 NO:06-5031-SQ Dipper sincerely expects of your cooperation contact us: *****