... and America:A: we are a regular supplier of valve assemblies for an American company producing auto productionB: supply ... a france company.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto- ... .(4) Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer,thread ring gauge and plug gauge and ...