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We are thrilled to introduce our latest high – purity copper products, boasting purity levels spanning from 4N5 to 7N 99.99999%. Cov khoom no yog cov txiaj ntsig ntawm peb lub xeev - ntawm - tus - kos duab kom ua kom zoo nkauj, uas tau tsim kho kom zoo dua qub tau tsim los ua kom tiav cov tsis muaj peev xwm.
