... / Workshop1. Item Name: steel structure warehouse/ workshop2. Steel Material: Q235B and Q345B3. Connection Type: bolted connection.4. Preservative ... freely the roof and wall panel, included both types:a. Heat-Insulating material( EPS, Glass wool, Rockwool, PU, etc.)they have ... type, etc.b. Single color corrugated steel sheet( Steel Material: Aluminum- Zinc sheet):They have different thickness( 0.3 ...