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Credit Card Holder RFID Blocking Automatic Pop up Wallet Aluminum Slim Pocket Business Card Case
Materials and Craftsmanship
Material : Common materials include 7075 aviation aluminum alloy (weighing only one-third of steel), stainless steel or galvanized iron. Some professional products are treated with anodizing, with a surface hardness of over HV400.
Process : The basic model adopts forging process, while the professional model needs to solve the welding problem through titanium carbide nanoparticle technology, with a tensile strength of 392 megapascals. Emergency rescue : Form a pulley system to carry out high-altitude rescue.


