SELENIUM COMPOUND, SOLID, N.O.S. (SELENIUM DIOXIDE) BATCH NO. 173802 DRUM NO. 1-8 ORDER NO. RF-12434 2ND NOTIFY: R&F CO SA DE CV CUMBRES DE LOS PIRINEOS #309 COL. CUMBRES ELITE CP 64349 MONTERRY, MEXICO EMAIL: ILIANA@RYFCOMPANY.MX