Heat-shrinkable Superpolymer Insulation Tubing 1. Heat-shrinkable 2. Softness, antiflaming, shrinking fast Our ... in electricity wire connection, weld spot protection, the protection and insulation for electricity wire tips, wiring harness and electronic equipments. It ... , yellow-green, red, yellow, green, or transparent. Heat-shrinkable Superpolymer Insulation Tubing