After-sale Service
Online technical support, Onsite Training
Project Solution Capability
graphic design, 3D model design, total solution for projects
Place of Origin
Shandong, China
Chemical Composition
Fe, C. Mn, Si
Secondary Or Not
Non-secondary
Model Number
spiral stair tread
Material / Steel grade
Mild Steel, ASTM A36, S275JR
Surface treatment
Hot Dipped Galvanized
Bearing bar type
Plain, serrated
Standard
YB/T4001, BS4592-1:1995, NAAMM, AS1657-1992
Nosing
Perforated nosing, stripe nosing, chequered nosing
HDG Standard
ISO 1461, ASTM A123
Payment terms
T/T 30% Deposit