BTB AIR VALVE Limited was founded in 2005 which has expertise in pneumatic valves research,development and manufacture,however our team has been providing excellent products and service for over decades,not to mention continuously contributing into technology high frequency and nign temperature,up to all standaras and exacty We strictly follow the ISO9001 quality assurance system and 6S production management system.We take the advantage of our imported CNC machine tools and advanced production technology,to make sure our products on leading level in domestic pneumatic valve manufactureindustry.