... & hydraulics, our main products include AIR CYLINDER, SOLENOID VALVE, F.R.L. COMBINATION, etc. Our research and development team is ... capable of OEM & ODM.OUR TEAMS R& D department: 7 members Quality control department: 7 ... testing station/ bench, penumatic performance automatic, solenoid valve dynamic state function experiments set surface roughness tester, life test bed/ rack