Taiwan Shuangying Sewing Machine (Ningbo) Co., Ltd. is specialized in manufacturing complete lines of computerized metering device , computerized towing device and digital tape feeder . ShuangYing company has established one set of complete and specific management system with product research and development , producing , testing , quality , controlling and marketing as well as realization of re-equipping different model sewing machines. Grouped with many experienced senior engineers , designers , inspectors and technicians originally from Taiwan and Shanghai , complete working procedure and...