Rinse with water will be clear pattern, and then 5% sodiumdichromate 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。
2
Chemical treatments, such as sodiumdichromate solutions, may facilitate the more rapid formation of the passive film on a stainless steel surface already free of scale or foreign matter.