Ducting
Recommended Specifications Zinc coating : 275 gsm (min) Thickness : 0.55 mm (min) Grade : ASTM A653M FS Type A/B Spangle : Regular.
Ducting
Recommended Specifications Zinc coating : 275 gsm (min) Thickness : 0.55 mm (min) Grade : ASTM A653M FS Type A/B Spangle : Regular.