Multi Function Manual Tools, Explosion Proof Tools Valve Wrench, Security Tool

Details Of Valve Wheel Wrench The Non Sparking Valve Wrench Is A Kind Of Security Tools, Effectively Prevent Sparks Production While Working, Applicable To All Flammable And Explosive Place. Material Copper Alloy/Aluminum-Bronze/Beryllium- Bronze Technology Die Forged Hardness Be-Cu Items: ≥ 35HRC Al-Br Items: ≥ 25HRC Application (Non Sparking Valve Wrench) Used In Petroleum, Chemical Industry, Natural Gas, Etc. And All Kinds Of Potential Explosive Dangerous Environment,