... 7Column2-M300 steel, T=3.0mm, Material: Q345, galvanized8Roof PurlineC-170 steel, T=2.3mm, Material:Q235, galvanized 9Wall PurlineC-170 steel ... , T=2.3mm, Material:Q235, galvanized10Compressed partDecorate and connect the wall, roof11BoltFor connection the ... . Sandwich panel Modular Building Galvanized zinc-coated Prefabricated house for warehouse, workshop