Min. Order Reference FOB Price
1 Piece US$4,000.00-8,000.00 / Piece
Product Description
Spiral Duct Tube Forming Machine Spiral duct machine is a machine used for producing spiral ducts. Spiral air ducts, also known as spiral slotted thin-walled pipes, were first used in warships and ship exhaust (supply) systems, and later used in civilian facilities such as trains, subways, and ...