| 摘要 |
A clad duct comprising an outer sheet of thermoplastic material and an inner duct of rigid foam is disclosed. The outer sheet of thermoplastic material is bonded to the inner duct and first and second edges of the outer sheet are sealed. A method for producing clad duct from a laminate is also disclosed. The laminate is a sheet of thermoplastic material bonded to an insulative foam board. V -shaped grooves are formed-in the foam board, opposite the sheet. |
