Item:
steel wood spiral staircase
tread:
rubber wood/ other wood/ Laminated glass available
wood tread thickness:
40mm/50mm customized
stringer:
diameter 76*4mm/ 114*4mm
stringer materails:
carbon steel/stainless steel
stair diameter:
1.3m/customized
stair floor to floor height:
customized per project plan
stair shape:
round, spiral