R&D, manufacturing and sales of plastic machinery, special equipment and pipe fittings for plastic pipes, plastic products, molds, metal products, general parts and equipment, automobile and motorcycle accessories, electrical equipment and accessories; mechanical parts processing and equipment installation and maintenance; industrial automatic control system device design, processing and assembly; sales of hardware products and electronic products; technological development, technical services and technical consultation in the field of electromechanical equipment; import and export of goods and technology.