... /95/EC) environmental directive. Dual Wall Heat Shrinkable TubeKOSOO DW3:1, 4:1Dual wall, high-shrink-ratio, adhesive-lined flexible ... , 4:1) is a flexible, flame-retardant, dual wall, high-shrink-ratio, irradiated heat-shrinkable tubing manufactured by co ... polyolefin. It is widely used to environmentally seal and protect interconnections, joints and components from fluids, moisture and corrosion ...