... structure for Fair 2. Steel Material: Q235B and Q345B3. Connection Type: bolted connection.4. Preservative Treatment: painted5. Advantages: fast construction, easy ... have different thickness(50mm,75mm,100mm, 200mm), density, color, type, etc.b. Single color corrugated steel sheet( Steel Material: ... They have different thickness( 0.3-0.7mm), color, type, etc.E. You can choose freely the material of ...