1.steel poles: 40*40mm*thick1.2mm rectangular tubes
2. mattress base:
25*50mm*thick 1.2mm rectangular tubes
3. mattress base cross bar tubes: 25*25mm*thick1.0mm rectangular tubes;
3. mattress base cross bar tubes: 25*25mm*thick1.0mm rectangular tubes;
4. ladder tubes thickness 1.2mm;
other tubes 1.0mm thickness;
other tubes 1.0mm thickness;