Chemical treatments, such as sodium dichromate solutions, may facilitate the more rapid formation of the passive film on a stainless steel surface already free of scale or foreign matter.
化学处理，例如重铬酸钠溶液，可以促进无氧化膜和杂质不锈钢表面的钝化膜更快速度的生成。
Rinse with water will be clear pattern, and then 5% sodium dichromate coating surface in the screen version of the brushing time, that is made of printed silk screen drama.
用开水冲洗便可得到清晰的花纹，再用5%的重铬酸钠在丝网版的涂胶面涂刷一次，即制成印剧丝网版。
Rinse with water will be clear pattern, and then 5% sodium dichromate coating surface in the screen version of the brushing time, that is made of printed silk screen drama.
用开水冲洗便可得到清晰的花纹，再用5%的重铬酸钠在丝网版的涂胶面涂刷一次，即制成印剧丝网版。
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