China 
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Including processing lightweight building materials, CL grid panels, steel structures, steel wire products, polystyrene foam boards, extruded boards, and plastic parts; manufacturing, sales, and installation of color steel mobile houses, steel structure houses, light steel sheds, and color steel fences; sales of steel, mechanical parts, hardware products, building materials, metal products; construction labor subcontracting; self-owned commercial housing leasing services; housing construction engineering construction; Engineering design activities.
