Since its establishment in 1968, JOKWANG I.L.I CO. LTD with its JK trademark has put every effort in pioneering and specializing as one of the leading valve manufacturing companies. Its devotion has concentrated especially in the area of safety relief valve, pressure reducing valve, stop valve and stream trap. 

With almost half a century of experience, JOKWANG has earned over a good reputation for quality, reliability, reasonable price and excellent performance.