2:1 Normal Grade Heat Shrink Identification Sleeves 2:1 ???????? Model number:SB-RSFR-M Working temperature: -40ºC ~ +125ºCStructure Normal grade heat shrink marker sleeve is developed environment-friendly flame retardant heat shrinkable tube, using specially designed formulation of high polymers, through cross-link by electronic accelerator and continuous expansion.Usage SB-RSFR-M heat shrink marker sleeve is widely used for wire and cable harness identification. It can also be used for applications where limited fire hazard characteristics are necessary.Characteristics MaterialThe slee
2:1 Normal Grade Heat Shrink Marker Sleeve