Chongqing Shield Gear & Transmission Co., Ltd. (CQSD) is a manufacturing base of heavy-duty automotive transmissions in China. CQSD lies in Beibei District of Chongqing.

CQSD has strong developing capability with our own R&D center, first class measuring center and physical & chemical laboratory. Moreover, CQSD has advanced production equipment and inspecting instruments.

CQSD was ISO9001: 2000 certified in 2007.

Our products are applicable to large & medium-sized luxurious buses with length of 7-12 meters, trucks with total weight of 10-50 tons, and various types of special vehicles.

CQSD's clients include luxurious bus manufacturers, and main heavy-duty truck manufacturers in China. Furthermore, we have been exporting our products to the United States and the EU countries as well as developing areas such as South Asia, the Middle East and Africa.