Manufacturing, processing and sales of molds, plastic products, auto parts and motorcycle parts (excluding engines), glass products, hardware products, daily necessities, detergents, cosmetics, building materials (excluding hazardous chemicals and precursor chemicals), communication equipment, office supplies, stainless steel products, aluminum alloy products, chemical raw materials (excluding hazardous chemicals and precursor chemicals), electronic components, metal materials, environmental protection equipment, packaging materials, paper products (excluding publications), sales of handicrafts, technology import and export and import and export of goods.