Cronologia della pagina
4 apr 2023
13 feb 2023
27 set 2022
15 feb 2020
1 giu 2019
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Creata pagina con "The natural color of ebonite is black, the only other colors that can be obtained with relative ease are orange, thanks to the use of cinnabar, or dark red (with the use of he..."
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Creata pagina con "In addition to mechanical fragility, the other fundamental defect of ebonite, at least from the point of view of fountain pen manufacturers, is the substantial impossibility o..."
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Creata pagina con "The material, however, suffers from high mechanical fragility, which makes the ebonite pens not very resistant to shocks and falls, in this case the chemical neutrality proves..."
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Creata pagina con "left|thumb|Example of discoloration of a [[Swan in ebonite]]"
Creata pagina con "Ebonite is the first material used for the production of fountain pens, in use since the first examples produced at the end of 1800. If even some objects considered as "precur..."
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Creata pagina con "Ebonite is a hard and brittle material, very resistant to corrosion by acids, and softens when heated. It is an excellent electrical insulator. It is easy to process and has b..."
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Creata pagina con "The <includeonly>hard rubber</includeonly><noinclude>hard rubber</noinclude> (also called ''ebonite'' or ''vulcanite'' in some old advertisements) is a <includeonly>materi..."
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Aggiornamento come da nuova versione della pagina di origine
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Creata pagina con "thumb|An ebonite [[Montblanc travel inkwell]]"
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Creata pagina con "Hard Rubber"
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