... of auto car. Kingbell are one of the Designer, Manufacturer for Powder Metallurgy parts of following Items.1.) Types of Pistons ... , Foot Valves, Rod Guide for Shock Absorber parts2.) Types of Gears / Pinion / Sprocket / Helical Gear ... partsAlso, you can browse our website for more details: Warmly welcome to our company for visiting.Wish we could build good and ...