... ,Website:http://www.airkir.com, newest and high-quality mechanical valve products from one productive factory, Fenghua Airkir Pneumatic Equipment ... Co.,Ltd is one of the professional mechanical valve manufacturers in China.We have various different valves like ... solenoid valves, pneumatic valves, mechanical valves, etc. Aboutsolenoid valve,there are 5/2,5/3,3/2 ...