... quality products and best services are the aim for us! Baoding huanyu machinery manufacturing co.,ltd.OEM SERVICESServiceDrawings or samples processing/OEM/ODM ... treatment, Polishing, Sand blasting, Painting, Electro-plating, Chemical Plating, and other machining processing.InspectionEquipmentsSpectrum analysis instrument, Metallurgical analysis, Tensile strength tester, Hardness ...