Product name HDG Hot dipped galvanized steel stringer for steel staircase
Material Carbon steel
Grade SS400,S235JR,A36,Q235B Q345B Q460 45#
Certification: ISO quality system, Chinese GB50221-2001
Types of steel staircases Straight stairs,spiral stairs,curved stairs,fire escape stairs,access stairs,stainless stairs,Dog let stairs,U shape stairs
Welding Technology:
Single level butt welding, fillet welding by electric arc welding, and Gas shielded welding.
Welding Testing Ultrasonic Testing, X-ray Testing
Packing
Wooden case,steel pallet or other seaworthy package
Inspection 100% dimension inspection and visual inspection,,gas tight test before delivery.
Manufacturing Technology
Drilling, Cutting, Assembling, Welding, Rectification, Testing etc
Application Indoor and outdoor
