... Wear resistant piston ring reduces friction and possibility of leakage.Compression valve selfadjusts for fast recovery. ... spare parts.we mainly dealing the spare parts of Mercedes-Benz and BMW.the Car Model Like ... E36/E38/E39/E46/X5 The spare parts include: shock absorber, air filter, fuel filter, cabin filters, ... corner light, fog light, ect. auto parts Shock Absorbers for Mercedes-Benz, BMW, IVECO