Manufacturing, processing, and sales: general machinery and parts, automobile parts (excluding engines), motorcycle parts (excluding engines), gasoline engines, diesel engines, generator sets, welding units, water pumps, agricultural machinery, air compressors, mechanized agricultural and gardening machinery and parts, agricultural tractors and parts (the above production projects must obtain a production license from the industry centralized management department and may not be operated before approval); manufacturing and sales: industrial robots; sales: agricultural machinery, instruments, hardware tools; import and export of goods. [Projects that require approval according to law can only be carried out with the approval of relevant departments]