SD+PSD type (insulating material for glass wool)

Characteristics：

With excellent insulation and silencing effect.

Beautiful appearance, the most suitable for the air duct exposed place.

The insulation layer is sandwiched between two layers, and is not shed by years long.

Material：

Galvanized steel Plate (g)

Stainless steel plate (s)

Size：

Outer tube: Using SD Standard or SSD-enhanced helical tube (0. $number. 5mm).

Inner tube: The use of PSD piercing spiral pipe (0.5mm).

Insulation Material: Use long, short fiber glass wool.