Zhejiang Shuanghuan Driveline Co.,Ltd., together with its subsidiaries, engages in the design, research and development, and manufacturing of mechanical transmission gears and related parts in China and internationally. It offers transmission core components for passenger vehicles, such as MT, AMT, DCT, CVT, AT, transfer case gears, synchronizers, electronic vehicle products, gear shafts, differential mechanisms, hybrid electric vehicle products, DHT, engine-gear rings, as well as planetary and scissor gears. The company also provides transmission case gear shafts and engine gears for commercial vehicles; off-road construction machinery gears; small spiral bevel gear power tools; rail transit gears; pinion shaft for wind power field; and motorcycle engine gears, including terrain vehicle gears and Haomai 50 gears. In addition, the company is involved in research and test experience development; software and information technology service industry; technology promotion application service industry; and investment business. Zhejiang Shuanghuan Driveline Co.,Ltd. was founded in 1980 and is headquartered in Hangzhou, China.