YONGKANG HEFA OOLS co LTD is  a manufacturer in producing Axiliary Air valve of motor cycle .leisure vehicle with japan technologe and we have exports as our technical adviner more than 100 staffs of menber team ,Our annual output has reached 2000,000sets we have aleady had abilit to form a compiete process line fom rough machining to entie assemble and the quality of our product taakes the led in the industry Auxilar air valve is high-tect product,which is used o reduce the motorcycle exhaust pollutants with obvious envionment protecion effect.We assure to pass the EUROII the EUOstandand requirement exhaust pollutants with our product. And it enablesthe factory producing ATVmotorcycle DIRTbike

GO KATR to pass USA EURP and EURO E MARKtest ,so it is very popular among our clients, At pesent,our clients are all over china LONGXING LIFANG JIALING DAYUNG DAYANG QINGQI TIANMA HAOJAN XINYUAN ZHONGXIN BAOTIAN KANGCHAO and so on .