[Product name] roof support for construction [Common specifications] Conventional, customizable 【Material】 Round steel, carbon steel [Function] The upper and lower support of the scaffolding [Scope] Shear wall, underground pipe gallery, water plant and power station, underground Bedroom etc Floor size: 160 × 80 mm Material thickness of the base plate: 8 mm Dimensions of the transport board: 80 × 80 mm Material thickness of the support board: 6 mm Support plate hole number: 2 holes: diameter 13mm and 2 holes 13 × 20mm Number of holes in the bottom plate: 4 with a diameter of 13 mm Minimum height: 140 mm Maximum height: 195mm (safety nut 2mm thread) The height can be adjusted by M20 left / right thread even after installation. With installed locknut SW30, used to lock and adjust height. Minimum height: 140 mm Maximum height: 195mm (safety nut 2mm thread) Material: galvanized steel