3311 Combination tool set (18pcs)
Details
PERFORMANCE
Non-sparking wrench can be also used in marine enginerring,the material is aluminum bronze or beryllium copper.
Be-Cu:
Suitable for hydrogen with concentration below 21%,standard code GBEX ⅡC
Hardness is not less than HRC35,Tensile strength δ b 105-120kgf/mm2
Beryllium copper alloy with anti-magnetic performance.
Al-Cu:
Suitable for ethylene with concentration below 7.8%,standard code GBEX ⅡB
Hardness is not less than HRC25,Tensile strength δ b 75-85kgf/mm2
Non sparking spanner,Explosion proof Tools