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Spacer sleeve functions to absorb impact and provide an excellent protection for aluminum profiles to keep a smooth surface. Besides, it helps to leave a gap for cooling and ventilation during handling and stacking. 

We use high-quality heat resistant materials to make the industrial felt spacer sleeve. It can be customized as needed and available in 5 different colors. 
SPECIFICATION                                                           Working Temp
Length: Custom made                                                   Nomex - 280°C 
Width: Custom made                                                     Polyester - 180°C
Density: 230g/㎡-1000g/㎡ 
Thickness: 1.3mm/1.6mm/1.8mm/2.0mm/3.0mm