Blackening process of dish springs
Spring blackening process Blackening by alkaline chemical oxidation treatment is to heat the qualified springs processed in concentrated alkali solution, so that a thin dense oxide film can be obtained on the surface of the springs, which has anti-corrosion effect.
No. 88, Gaoqiao industrial district, Yin Hu Street, Fuyang District, Hangzhou.
Time of issue:2018-07-03 00:00:00
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