Ma muli o ke ʻano hana, ʻeono mau ʻano kumu nui no ka pickling acid a me ka passivation o ke kila kila: ke ʻano immersion, paste method, brushing method, spraying method, circulation method, and electrochemical method.Ma waena o kēia mau mea, ke ʻano o ka immersion, paste ...
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