Foundry machinery manufacturing; metal forming machine tool manufacturing; CNC machine tool sales; foundry machinery sales; mechanical equipment sales; production line management services; spray gun and similar appliance sales; environmental protection special equipment sales; special equipment sales; construction engineering machinery sales; construction engineering machinery manufacturing; mining machinery manufacturing; mining machinery sales; hand cart and animal-drawn vehicle manufacturing; hand cart and animal-drawn vehicle sales; textile special equipment manufacturing; textile special equipment sales; rubber processing special equipment sales; rubber processing special equipment manufacturing; environmental protection consulting services; mechanical parts and components processing; mechanical parts and components sales; import and export of goods; technology import and export; metal material manufacturing; metal material sales; metal product repair; general mechanical equipment installation services; specialized equipment repair; spray coating processing; coating equipment sales; spray gun and similar appliance manufacturing.