dormitory bed Spec.2000X900X2000mm1.Main Metal Structure: φ38mm*1.3mm vertical tube and 50mm*30mm*1.3mm horizontal tube2. Ladder: 40mm*20mm*1.2mm vertical tube and 40mm*20mm*1.2mm horizontal tube,3.Bed Tube & Board: 30mm*30mm*1.2mm, (1900mm*70mm*16mm)*12pcs4.Technics: carbon-dioxide arc welding, electrostatic spray5. Wall Units: 16mm MFC used in main body; 25mm MFC used in table-board