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Gold Mill Liners Specifiions

It should be noted that the type, grade, and class requirements are completely different for ASTM B488 gold platings and AMS 2422 gold platings. Types of Mil-Spec Gold Plating. Type I 99.7 minimum gold content Grades A, B, or C Type II 99.0 minimum gold content Grades B, C, or D Type III 99.9 minimum gold content Grade A only Grades ...

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