Lead With Impurities, 50g Chips, MBH-83X PR3-21-C , formato 50 g

Lead With Impurities, MBH-83X PR1-21-G , formato disc

Lead With Impurities, 50g Chips, MBH-83X PR1-21-C , formato 50 g

Tin White Metal, 50g Chips, MBH-73X SC8-21-C , formato 50 g

Bronze alloy, 50g Chips, MBH-32X SN5 C-C , formato 50 g

Carlin-Type Gold Ore with Au Certified at 8.9 ppm, CRM, MBH-AU-ORE1-21-P , formato 200 g

Copper Alloy, CDA 101, UNS C10100, 100g Chips, IARM-CU101-18-C , formato 100 g

Copper Alloy, CDA 110, UNS C11000, 100g Chips, IARM-CU110-18-C , formato 100 g

Carbon Steel, AISI 1215 / G12150, IARM-FE1215-18-C , formato 100 g

Leaded Red Brass, Copper Alloy, CDA 836 / C83600, IARM-CU836-18-C , formato 100 g