Steel Structure Gymnasium: 1)Durable for 15 years at least 2)Firm ... and efficient platforms etc., are all based on Steel Constructions. NameSteel Structure GymnasiumMaterialsHot Galvanised Steel, C Purlin, H Beam, Sandwich panel, etc.Features1 ... 3K*10K houses in two days.4)Extensive Applications: Warehouse, Plant, Exhibition Hall, Terminal Building, (Sports) Stadium, Theater, Special-shaped Building ...