M-825 copper antitarnish agent

-Technical Parameters--Product Features------------------------------------------------------------------------------------------------------------------------M-825. ◆ M-825 selection of a variety of imported anti-corrosion raw material reaction compound, has a very excellent anti-discoloration ability. ◆ Environmentally friendly copper treatment process, free of chromium and heavy metals. The operation control is simple, normal temperature soak for 2 minutes, usually only need to operate

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