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<p>[QUOTE="Joan, post: 9439520, member: 5398"]Thank you Bronwen, hadn't thought about the significance of only the pin stem being metal. The only other polymers I've heard/read about are bakelite, catalin, casein, lucite, acrylic but it seems those materials were in sheets, rods, blocks, etc., not molded into shapes.[/QUOTE]</p><p><br /></p>
[QUOTE="Joan, post: 9439520, member: 5398"]Thank you Bronwen, hadn't thought about the significance of only the pin stem being metal. The only other polymers I've heard/read about are bakelite, catalin, casein, lucite, acrylic but it seems those materials were in sheets, rods, blocks, etc., not molded into shapes.[/QUOTE]
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