118 150mm spiral duct products are offered for sale by suppliers on Alibaba.com, of which hvac systems parts accounts for 38%, duct making machines accounts for 11%.
A wide variety of 150mm spiral duct options are available to you, You can also choose from plastic, steel and pvc 150mm spiral duct,As well as from white, black 150mm spiral duct,and whether 150mm spiral duct is easy assemble, or flexible.