plastic products, plastic pellets, Special equipment for plastic processing; Special equipment for rubber processing; Manufacturing of special equipment for environmental protection; Chemical raw materials、 Chemical reagents and chemical auxiliaries( No dangerous goods) Production and sales; Mechanical equipment, Hardware products, Electronics, Metal and products, Firefighting equipment, rubber products, Packaging materials, Building Materials, Sales of daily necessities, Engage in import and export of goods and technology( Except for goods and technologies prohibited or restricted by the state)。