MA AN was founded in 1988 and specializes in marine valves manufacturing. We have built a perfect management system. We were rewarded with a license of marine valve production in 1990; the license was issued by China ship-building Industrial Crop; and we have been rewarded with ISO9001 certificate too. We are one of the best professional high-quality, high-tech stainless steel and cast copper valves,Marine Valve designers and Marine Valve manufacturers in China.