1.Shrink ratio: 2:1 2.Rated temperature:-55 to 125C 3.Halogen free,environment-friendly, flame retardant. 4.UL,RoHS approval. Product Introduction2:1 Halogen Free Flame-retardant Normal Wall Heat Shrinkable Tube is newly developed environment-friendly flame retardant heat shrinkable tube, using specially designed formulation of high polymers, through cross-link by electronic accelerator and ...