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Industry knowledge · engineering guides

Industry knowledge library

Sourcing, manufacturing and materials guides for metal wallets, RFID and MagSafe wallets, card holders, key organizers, leather programs and phone stands.


CNC turning of an anodized aluminium wallet frame on the production line at the GSTAR factory

Featured · visual guides

Start with the mechanics

Three long reads that explain how the products actually work — mechanism, magnet stack, card retention — before you compare quotes.

11,000 – 12,000 WORDS EACH

Index · 11 disciplines

Browse by category

Every guide is grouped into one engineering topic. Each card links to its hub page and to the two guides most buyers start with.

854 GUIDES · LAST ORGANIZED NOV 2026

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Ask the engineering desk directly.

Material grades, blocking performance, mechanism life — if the answer is not in 854 guides, our team can answer it for your project.

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All 854 guides

Filter by category or search by keyword. The list is generated from the site’s published articles.



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Updates

Latest articles

Hybrid Leather & Carbon Fiber Card Holder for Modern Use
Card Cases & Graded Holders

Hybrid Leather & Carbon Fiber Card Holder for Modern Use

This article explores the rise of hybrid leather and carbon fiber card holders as the essential modern accessory. It highlights the fusion of aerospace-grade durability with traditional luxury,…

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