... Wall Heat shrinkable tube 1) Shrink ratio: 2:1 2) Flexible of both outer tubing and inner adhesive 3) Conform to RoHS Dual Wall Heat shrinkable ... tubeThis is a flexible, flame-retardant, dual wall, irradiated heat-shrinkable tubing ... , rubbers and metals 6) Free of PCBs, PCPs, polybrominated ... red (-RD), yellow (YL), blue (-BL), green (-GR), clear (-CL, not flame-retardant)c ...