General Projects: Metal structure manufacturing; Metal structure sales; Building materials sales; Hardware products wholesale; Doors and windows sales; Mechanical parts and components sales; Electrical equipment sales; Doors and windows manufacturing and processing; Plastic products sales; Metal products sales; Fire protection equipment sales; Building blocks sales; Building blocks manufacturing; Bricks and tiles sales; Advertising production; Metal sign manufacturing for traffic and public management; Urban greening management; Construction machinery and equipment leasing; Container leasing services; Rental services; Loading and unloading; Container manufacturing; Container sales; Container maintenance; Cement products manufacturing; Cement products sales; Rubber products sales; Insulating and soundproofing materials sales; Insulation materials sales; Paint sales; Insulating and soundproofing materials manufacturing; Metal door and window construction; Earthwork construction.