Technical Parameter
Item：76X1200/1600/1800/2000
Material：Q235B/Q345B
Surface Treatment: Hot dipped galvanized average coating 80μm
Length：1200/1600/1800/2000mm
Outer Diameter：76mm
Thickness：3-4mm
Helix Step：75/100/120mm
Helix Thickness：4-6mm
Helix Diameter：176/189/256mm
Technical Requirements
1. Hot dipped galvanized to DIN EN ISO 1461, average coating 80μm.
2. No distortion, no sharp edge.
3. Tolerance: Standard GB/T1804-C, Hole position ±1, hole dia. ±1
