SHIYAN TONGCHUANG DRIVE TECHNOLOGY CO., LTD. is a leading Chinese OE manufacturer who develop and produce synchronizers, synchronizer rings, clutch parts, and friction materials for all transmission application area in commercial, passenger and off-highway vehicles. Our best-known customers place their trust in us as their partner to jointly serve end users. With the advanced R&D technology and innovative talents, customers who expect transmission solutions choose us as their OE supplier or OD manufacturer. Our sophisticated solutions and products have helped many customers won over their market. From the same technical source, hundreds of customized products have been developed by us to meet the needs in after-sales market across the world. We support the success of the dealers and traders, especially in USA, Europe, Mid-East and South-East Asia.