... blue,green,white etc. size:diameter 10 to 200 Spiral guard hose Material PP,PE or PAColor black,yellow,green,red, ... two kinds----convex surface and flat surface Performance1)Exterior surface:Spiral protection sleeve surface smooth, no lack of material, cracks, ... 30Mpa;Impact strength(unnotched):continue7)Has good UV resistance. Black spiral protection sleeve product line by adding a certain ratio of ...