External insulation type Spiral duct

Characteristics：
With excellent insulation and silencing effect.

Model : P-SP 外保溫型螺旋風管

Q'ty :

Insulation material for PE board

Characteristics：

With excellent insulation and silencing effect.

Material：

Galvanized steel Plate (g)

Stainless steel plate (s)

Size：

Outer tube: Use SD standard spiral tube (0. $number. 5mm).

Insulation Material: Use PE insulation board.

Model : D-SP 消音雙層螺旋風管

Model : H-SP 沖孔型螺旋風管

Model : R-SP 標準型螺旋風管

Model : J-SP 加強型螺旋風管