Double-sloping roof prefab house 
 ◆ contract a variety of heterogeneous activities, housing design, production, processing and installation, and launch a nationwide mobile home sales, lease, disassembly, reorganization, repurchase, and warehousing business: 
 ◆ Single slope roof board room, board room, double-pitched roof, three-slope roof board room; 
 ◆ single board room luxury flat roof, flat roof double deluxe board room;