Polyurethane foam panel with 45kg/m3 density,20mm thinckness,coated on both sides with 80/60 micron thick aluminium foil.The aluminium foil is embossed on one side(the other side with smooth alu foil)

Features: 1)Diameter range:75-400mm 2)Max.air velocity:28m/s 3)Max.working pressure:350MMWG 4)Standard length:10m

Can be widely used for ducting system together with Phenolic,PUR and PIR duct panel 

PVC Invisible Flange Joint (in 4mtr length) Can be widely used for Central Air Conditioning system which work together with Phenolic,Polyurethane and PIR Pre-insulated duct panel.

Can be widely used for Ducting system together with Phenolic,Polyurethane and PIR duct panel.

1The outline border of the product is circular,the core is a disc. 2It will be much better to match with a butterfly valve to achieve ideal effect. 3If you have any specific requ

1.The valve is connected with the flexible duct or circle duct to control the air volume. 2.2.Material:galvanized steel

Material:galvanized,stainless steel sheet. Feature: Smoke exhuasted meatus usually install in vent-pipe and close the valve,and it can control by DC24V to turn on the valve.The v

Manual tools for Fabricating