Stainless Steel 1PC ball valve (with locking device ) 1000 PSI, NPT thread. Materials: SS304 SS316 SS316L WCB Wenzhou Wurong Valve Co., Ltd., is located in Yongfu Industrial Zone, Longwan, Wenzhou, P. R. China. We have many years of experiences in manufacturing and exporting all sorts of industrial valves and pipe fittings. Our company have got the ISO9001, API and PED-CE Quality certifications, and have gained the License of import and export. Now our products are sold in the entire world, include U. S. A, Europe, Middle east and Southeast Asia, Russia, Japan and so on.