Supplier Page from Thermo Fisher Scientific for Magnesium Oxide Crucible, Cylindrical, Flat Base, OD(mm) 43, Height(mm) 50
Platinum standard form crucible, Top OD 37mm, Bot Dia 22.5mm, Ht 31mm, Base Thickness 0.25mm, Capacity 20mL from Thermo Fisher Scientific
USA Standard Sieve, 12 Mesh from Thermo Fisher Scientific
USA Standard Sieve, 500 Mesh from Thermo Fisher Scientific
USA Standard Sieve, 635 Mesh from Thermo Fisher Scientific