The study on manufacturing light-color ink solvent with extract oil of lubricating oil in Ji′nan Refinery is introduced.
介绍了济南炼油厂以润滑油抽出油为原料研制和生产浅色油墨溶剂油的过程。
Copyright © 2022-2024 汉字大全www.hanzidaquan.com All Rights Reserved 浙ICP备20019715号