We can make Spiral Round Tube in any size from 80mm diameter to 1400mm diameter. This round duct can then be used to make Oval Duct in a variety of sizes as set out at https://spiroductaustralia.com.au/products/oval-duct
THE WORLD’S PREMIUM SYSTEM FOR SPIRAL DUCT MANUFACTURING
Spiroduct provides outstanding service, absolute quality and the latest technical innovations.