Processing of plastics at the main camp of jiangsikuncho science and technology ltd., sale of play equipment, sale of moulds, operation of agromechanical oil tanks, sale of agricultural machinery, sale of metal products, sale of outdoors, sale of smart agricultural equipment, sale of hand-push vehicles and livestock tractors, sale of livestock machinery, manufacture of rubber products, import and export of goods, import and export agents (run autonomously on the basis of a legal licence except for projects subject to legal authorization)