General items of specific printed matter printing: sales of packaging materials and products; sales of surface functional materials; manufacturing of clothing accessories; sales of clothing accessories; manufacturing of office equipment consumables; sales of office equipment consumables; mold manufacturing; mold sales; manufacturing of special printing equipment; software sales; import and export of goods; technology import and export; solar power generation technical services; manufacturing of new film materials; sales of new film materials; manufacturing of plastic products; sales of plastic products; manufacturing of special equipment for plastic processing; sales of special equipment for plastic processing; manufacturing of automotive decorative supplies; sales of automotive decorative supplies