UL Thin wall heat shrink sleeve 1).Ultra thin wall , rapid shrinking. 2).flame retardant, 3).UL approved.Conform to Rohs. UL Thin wall heat shrink sleeveKOSOO K-2 (CB) is environment friendly, ultra thin-wall, flexible, flame-retardant, irradiated crosslinking heat-shrinkable modified polyolefin tubing. It is designed for applications that require an ultra thin wall for rapid shrinking and space ...