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qiaonan,guangzhou,Guangdong,China China
**2E is a special trivalent chromium passivator used in zinc electroplating. Treat with it can have bright blu
This product is single agent type and can operate at normal temperature (****5 ); easy handing; use 3 7%
連絡先担当者 Mary Qin
住所 qiaonan, guangzhou, Guangdong
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