- Difficultiescanannealwill.Three:theyarehardening,temperandanneal.Three.Theyarehardening,temperandanneal.Offerthebottlegalssproductionlinedesign,containtherawmaterial,anneal.Reducingannealingfurnace:Thefurnaceisusedtoannealandreducecoldrolledcarbonste...
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