Chongqing Shield Gear & Transmission Co., Ltd (CQSD) wasestablished in 2005, and is located in the Beibei Zone of ChongqingCity. CQSD specializes in producing transmission gearboxes andrelated spare parts for the heavy-duty truck industry and municipalbusses. Product line includes synchronizers, gearbox housings, internaltransmission gears and shafts for 5S-150GP, 5S-111GP, QJ805,QJ1506, and S6-90 transmissions, etc. CQSD has the ability torapidly develop new products and in the past several years hasbecome one of the leading manufacturers for heavy-duty automotivetransmissions and worldwide.