A bright pickling and chromating process for copper pipes was introduced.
介绍了一种紫铜管光亮酸洗钝化工艺。
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.
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。
Pickling or bright dipping in acid can remove this magnetic film and restore the non-magnetic properties.
酸洗或明亮的酸浸，可以删除这个磁性薄膜和恢复非磁学性质。
Stainless steel smelting, hot and cold rolling steel belt, stainless steel with homebred welding, black belt annealing and pickling process bright annealed, etc.
不锈钢的熔炼、热轧、冷轧国产不锈钢带、不锈钢带焊接、黑带退火、光亮退火、酸洗加工等。
Stainless steel smelting, hot and cold rolling steel belt, stainless steel with homebred welding, black belt annealing and pickling process bright annealed, etc.
不锈钢的熔炼、热轧、冷轧国产不锈钢带、不锈钢带焊接、黑带退火、光亮退火、酸洗加工等。
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