Strong H Machinery Technology (Cayman) Incorporation and its subsidiaries manufacture and sell sewing machine spare parts and face mask machines worldwide. Its products include edges, needle plates, feed dogs, presser foots, needle clamps, and knives for embroidery sewing machines, as well as industrial sewing machine knives, straight knife round knifes, gauge sets, needle plate assemblies, and computerized embroidery machine knives. The company also offers automatic trimmers for overlock and interlock sewing machines and belt cutting devices for interlock sewing machines. Products are sold under the STRONG H brand. Founded in 1994, the company is based in Laizhou, China.