ZHEJIANG YONGGONG sewing machine Co.,Ltd. is an export-oriented sewing equipment manufactory in China. We have a set of advanced operation system, including products development, NC machin-ing, quality control, marketing and after- sale service. YONGGONG is specialized in high speed computerized lockstitch sewing machine series, super high speed overlock sewing machine series, high speed interlock sewing machine series, bag closer machine ...