The difference was minor. To open, slit end of envelope,and slide contents out. Open each layer by slitting tape at sides. Etched Brass material. Use on various models and dioramas. Etched Brass. for Model Building / Scratch Building / Dioramas.
Photo-Etch & Brass - Rebel Scale
Opportunities in Na/K [hexacyanoferrate] frameworks for sustainable non-aqueous Na + /K + batteries - Sustainable Energy & Fuels (RSC Publishing) DOI:10.1039/D1SE01653A
Progressive Components Production Tooling Catalog (Version 14.5) by Progressive Components - Issuu
Principles and Practice of Metallography
Micromachines, Free Full-Text
Colorimetric determination of CO2 exchange in field and laboratory
Armour Etch 15-0200 Etching Cream, White, 10
Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis
0.35-2.25X LED Industrial Inspection Measuring Microscope + Digital Camera
Etch-Master brass-etch details for miniatures and scenery
AMC Hornet - Wikipedia
Design, synthesis, and application of metal sulfides for Li–S batteries: progress and prospects - Journal of Materials Chemistry A (RSC Publishing) DOI:10.1039/D0TA06220K