Cold-proof electric safety helmet 1.Outer material:chenille,artifical short veivet 2. ... material: ABS 3.ISO9001:2000 Cold-proof electric safety helmet DetailsOuter material:chenille,artifical short veivet Inner material: ABS ... power, petrochemical industrial, construction, mechanical engineering, transportation, suitable for -20 centigrade working environment. Product show Cold-proof electrical safety ...