50 mm Insulated Fireproof Rock wool Sandwich Panel Wall Panel for Workshop Building Warehouse/Cold Room Mineral 75 mm 100 mm 150 mm Wool Panel Fireproof Rock wool Sandwich Wall Panel
C channel is made of galvanized steel strips by the method of cold-bending formed.The surface treatment are galvanized or bare. It has many advantages compared with traditional structural steel, such as light weight, excellent performance cross-section, high-strength and so on.