Mould spring 1.Tight tolerance. 2.OEM&ODM service. 3 ... before shipment.Measuring & testing equipment: projecting apparatus, roughness tester, hardness tester, concentricity tester etc.Payment term50% in advance, 50% before shipment. ... 9) Measuring & testing equipment: Projecting profile, roughness tester, hardness tester, concentricity tester etc. 10) Give customer professional suggestion while in the ...