... .super high wear resistance,corrosion resistance 2.low friction coefficient,heat-resistant 3.patent technique,cost effective Specification of ... HSS5.Characteristic: super high wear resistance,corrosion resistance,low friction coefficient,high temperature oxidation resistance,high performance competitive price.6. ... :Class AA ,ClassA 7. Highest temprature of working: 400°c,600°c,900°c,700°c,1100°c8.Micro ...