SELENIUM METAL POWDER 99.5% MIN., 200 MESH BATCH NO.173401 DRUM NO. 1-22 BATCH NO. 173912 DRUM NO. 23-36 ORDER NO. RF-12433 2ND NOTIFY: R&F CO SA DE CV CUMBRES DE LOS PIRINEOS #309 COL. CUMBRES ELITE CP 64349 MONTERRY MEXICO EMAIL: ILIANA@ RYFCOMPANY