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WBQ N68×1200/1600/1800/2000

Technical Specifications for WBQ N68×1200/1600/1800/2000
Item No.	WBQ N68×1200/1600/1800/2000
Material	Q235B/Q355B
Surface treatment	Hot dip galvanized above 80 microns on average
Length	1200/1600/1800/2000mm
Tube outer diameter	68mm
Pipe wall thickness	3-4mm
Spiral pitch	40/50/60mm
Spiral thickness	2-3mm
Spiral width	10-20mm

Technical Requirements

The average thickness of hot-dip galvanizing is 80um, and the implementation standard is DIN EN ISO 1461.
The surface shall be free of obvious deformation and welding slag Burr shall be removed.
Unspecified tolerance GB/1804-C, the hole position deviation is ±1mm, and the hole diameter difference is ±1mm.