A new type phosphating solution of zinc series at low temperature was prepared.
研制了一种新型低温锌系磷化液。
The solution after improvement is called zinc and calcium series phosphating solution.
改进后的磷化液称为锌钙系磷化液。
The solution after improvement is called zinc and calcium series phosphating solution.
改进后的磷化液称为锌钙系磷化液。
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