This standard prescribes the designation, chemical composition, product analysis variation, mechanical property and sampling location for mechanical property of constructional steel used for forging.是什么意思_This standard prescribes the designation, chemical composition, product analysis variation, mechanical property and sampling location for mechanical property of constructional steel used for forging.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句