... which develop and manufacture all kinds of auto parts on the heavy duty truck, bus and coach. Products ... Valve, Foot Brake Valve, Hand Control Valve, Sing/ Double Check Valve, Directional Control Valve, Gladhands, Safety Valve, Levelling Valve, ... available! Contact person: Amelia Zhang Telephone Number: 0086-18888755018 Fax Number: 0086-575-87659537 clutch booster (90mm) on heavy truck 642-03502