介绍了一种紫铜管光亮酸洗钝化工艺。
A bright pickling and chromating process for copper pipes was introduced.
本文介绍的铜制件光亮酸洗钝化工艺，既无有毒的含铬物质，又无氮氧化物污染。
The no pollution bright pickling passivation technique of copper parts introduced in this pa-per, has neither the toxic chromium containing materials nor nitrogen oxide pollution.
经冷轧后实施热处理、酸洗或其它相当处理，再以冷轧加工使表面为适当之光亮程度者。
Those finish, after cold rolling, by treatment, by heat packing or other equivalent treatment and lastly by cold rolling to give an appropriate luster.
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