介绍了预黑处理液配方和中温锰系磷化液配方。
Bath formulas of blackening pretreatment and manganese series phosphating at mid-temperature were introduced.
本文对十种不同的锰系磷化液在磷化前处理的六种不同材质上所产生的磷化膜进行了研究。
We have investigated the characteristics of phosphate coatings produced on six various pretreated materials with ten kinds of manganese phosphate solutions.
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