Cold shrink tube mainly sort for two material ,including silicone rubber and Enthylene Propylene Diene Monomer .It is easy intallation through pull into the support bar to achieve the best protection and sealing .It has the excellent performance like high insulation ,waterproof ,anti-skip ,high temperature resistant ,low electricity resistance ,840% elongtaion strength and 8.6MPa tensile strength .Compare with the traditional heat shrinking tube ,it is easy for operating and non temperature proof and installation demand .The shrinking ratio is 2:1 , the black medium wall cold shrink tube before shrinking is 2 in I.D. and after it shrinking it recover the 1 in, the medium wall thickness shrinking ..Most cold shrink tube wide used in the industrial flied automotive ,telecom base stations ,wind or solar electricity ,cable power etc.