For hardened steel, alloy steel, high speed steel, high carbon steel, etc. Also for thread and gear grinding and thin walled workpieces.是什么意思_For hardened steel, alloy steel, high speed steel, high carbon steel, etc. Also for thread and gear grinding and thin walled workpieces.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句