1.material:WPS 2.CE/ISO/OHSAS 1. Material: plastic wood and A3-typed carbon steel (Q235)Plastic wood: 120*120*1000mm and 120*120*400mm (both are square). This kind of material is made of plastics and real wood. It can be insect-resistant, moisture-proof , antistatic , resistant to acid and alkali and at an advantage of fire prevention.A3-typed carbon steel: Main column:100*100*3mm(square) ...