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研制了一种适合多种金属(包括黑色金属、铜、铝)切削的“四合一”金属切削液 ,兼具冷却、润滑、清洗和防锈多重功效
Developed a “four in one” metal cutting fluid suitable for cutting a variety of metals (including ferrous metals, copper, aluminum) with multiple benefits of cooling, lubrication, cleaning and rust protection