Since founded in 1993, JW - LOK has been sticking to your own route, keep the leading position in the fluid flow control system industry. Products are widely used in petroleum, petrochemical, new energy and other related industries. Through international certificates, such as ISO9001, TS, ISO14001, OHASA18001, ISO15848 etc., and many well-known international and domestic transportation equipment manufacturers to establish long-term stable business relations of cooperation, provide the CNG, LNG, H2 professional valve and pipe fittings, and has set up a high customer satisfaction.