How much is the square aluminum foil composite duct produced and installed?
50 returns the knife? What are you doing? Double sided printing aluminum foil wind pipe material quality is good, phenolic resin, polyurethane, glass fiber are collectively referred to as composite duct
My math is good, the key is artificial, now make the wind pipe master lowest nor down 200 a person.
The raw material is sheet to around 30, plus glue, flange, freight, production, installation, installation accessories
