95% sic +5% (av + graphite + additive), phim nrogThawj oshoff hlawv; 20,000 teev lub neej, txhua lub ntsej muag polished, txhuathwv cibtus kheej thawv ntim khoom, 24ps cib ntim rau hauv ib lub thawv loj.
Cim npe nrov: Chock Tuam Tshoj, Cov Chaw Tsim Tshuaj, Mekas
