Supplier Page from Thermo Fisher Scientific for USA Standard Sieve, 12 Mesh
Graphite fusion crucible lid for stock number 14747, 3.2cm (1.25in) dia, 0.48cm (0.19in) thick from Thermo Fisher Scientific
Sieve Covers, polished brass from Thermo Fisher Scientific
USA Standard Sieve, 60 Mesh from Thermo Fisher Scientific
Zirconium Cover for Crucible 36097, 250ml from Thermo Fisher Scientific