1. Classification according to shrinkage ratio: 2 times shrinkage ratio heat shrinkable sleeve 3 times shrinkage ratio heat shrinkable sleeve 4 times shrinkage ratio heat shrinkable sleeve 5 times shrinkage ratio heat shrinkable sleeve 6 times shrinkage ratio heat shrinkable sleeve.

Second, according to the temperature ratio: high shrinkage ratio heat shrinkable casing, high temperature heat shrinkable casing (105-260 degrees), 200 degree military heat shrinkable casing, 175 degree transparent flame retardant heat shrinkable casing, high performance oil resistant soft rubber Heat shrinkable sleeve, 105 degree high temperature heat shrinkable sleeve, 125 degree high temperature heat shrinkable sleeve, 135 degree high temperature heat shrinkable sleeve, 150 degree high temperature heat shrinkable sleeve, 175 degree high temperature heat shrinkable sleeve, 200 degree high temperature Heat shrinkable sleeve, 260 degree high temperature heat shrinkable sleeve, 400 degree high temperature heat shrinkable sleeve.

Third, according to heat shrinkable material classification: fluoro rubber heat shrinkable sleeve, Teflon heat shrinkable sleeve, FEP heat shrinkable sleeve PTFE heat shrinkable sleeve PVDF heat shrinkable sleeve PET heat shrinkable sleeve PE heat shrinkable sleeve PVC heat Casing Polyvinylidene Fluoride Heat Shrink Tubing PTFE Heat Shrink Tubing Fluorocarbon Heat Shrink Tubing Silicone Rubber Heat Shrink Tubing Crosslinked Polyolefin Heat Shrink Tubing Polyester Heat Shrink Tubing Teflon Heat Shrink casing.

Fourth, by color: yellow and green two-color heat shrinkable sleeve, black heat shrinkable sleeve white heat shrinkable sleeve yellow heat shrinkable sleeve blue heat shrinkable sleeve red heat shrinkable sleeve gray heat shrinkable sleeve transparent heat shrinkable sleeve Green heat shrinkable sleeve yellow-green two-color heat shrinkable sleeve brown heat shrinkable sleeve.

V. Classification by use: Sealed waterproof heat shrinkable sleeve, marine heat shrinkable sleeve, heat shrinkable sleeve for cable identification, heat shrinkable sleeve pipe anticorrosion heat shrinkable sleeve for automobile harness, heat shrinkable sleeve for cable protection, Heat shrinkable sleeve for communication, heat shrinkable sleeve for medical device, heat shrinkable sleeve for high temperature heat shrinkable sleeve, heat shrinkable sleeve, high shrinkage ratio, heat shrinkable sleeve, anti-corrosion heat shrinkable sleeve, oil resistant heat shrinkable sleeve, fiber Thermal casing.