... wheel hub assembly 2) OEM service 3) Auto use 4) trailer and other veicle use 5 ... .InspectionEquipmentsSpectrum analysis instrument, Metallurgical analysis, Tensile strength tester, Hardness tester, Roughness tester, deflection tester, Impact test machine, Projector, Altimeter, Scale ... Micrometer, pressure tester, etc. Quality control: (1) Machinery properties ...