As a professional trailer connector manufacturer, TSY (Taiwan Sheng Yeo Inc.) endeavors to produce high quality products. Companies from worldwide have trusted TSY with their manufacturing needs since we were founded in 1984 and we continue to work hard at earning trust every day. With the change of the market, demands for products quality, on-time shipment and well service providing are increased, that are the reasons that companies turn to TSY as their manufacturing partner. We understand the competitive nature of our customer's business and we are sensitive to what help them stronger. We firmly believe and practice the principal that our customers' successes come first.