motorcycle shock absorber parts--piston, base valve, pistion rod ... our products to US, Korea, Germany, Iran, and so on.Kingbell are one of the Designer, ... 1.) Types of Pistons, Foot Valves, Rod Guide for Shock Absorber,2.) Types of Gears / Pinion / Sprocket / ... and cooperation negotiation.Please let me know if you are interested in our products.Thank you and best regards,Mary motorcycle shock absorber ...