Prestressed Zinc Coating Spiral Corrugated Flat Duct

Basic Info

Model NO.	Flat duct
Transport Package	Container
Specification	Round and flat
Trademark	ETERNOO
Origin	China
Production Capacity	2000m/Day

Product Description

Hot dipped galvanized steel corrugated FLAT duct
Size and shape can all be customized

Our duct mainly used for post tension concrete grouting,
thickness: 0.25mm,0.28mm,0.3mm,0.35mm,0.4mm,0.6mm
most popular size: 70*20mm,50*20mm, 90*25mm

Cold rolled strip production technology:
1. Acid pickling, 2. Rolling, 3. Annealing , 4. Anti-corrosion oil painting, 5.
Leveling , 6 cutting, 7. Packing

Material	Standard	Grade	Equivalent foreign standard	Foreign Grade	Application
Structural steel	GB/T912-1989	Q195	JISG3101	SS3300	For Building, Bridge, Ship, vehicle etc.
		Q235B		SS400
		SS400		SS490
		ASTMA36		SS540