... high strength resistance aluminum alloy shell is introduced overseas data and produced.High temperature resistance,below 500 °C.High ... spray,nickel spring, Bakelite(fiberglass),aluminum alloy polishing.Plug for electric plug:It apply high strength alloy shell and is ... can resist high voltage and heat,soft. 25A fluoroelastomer plug, High temperature resistance,high voltage resistance,acid,alkali,smash ...