Material:

housing:steel ,impelller:aluminium

Optional functions:

3 speeds control, low, middle and high speed.

Features:

Description
Material
1. material : steel + aluminum
features
1. Coolcom Centrifugal fans from are available with forward- or backward-curved blades. Energy savings, convenient control and low noise -motor available with GreenTech EC technology or AC 230V or 110V . EC fans can be speed controlled via a 0-10 V signal and AC fans with 3 speed control, low ,middle and high speeds.

optional functions
1. 3 speeds control, low, middle and high speed.