durable steel poultry houses

塗装または亜鉛メッキされたプレハブ構造用鋼H形鋼 Q235B Q355B

High Strength Prefabricated Structural Steel Fabrication H Beam Painted / Galvanized Product Specifications Raw Steel Material Q235B, Q355B, ASTM A36 Application Steel Workshop, Steel Structure Platform, Structural Roofing, Frame Part Surface Treatment Painting or Hot-DIP Galvanized Service Life 50 ...