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Functional plating
The function of gold: in accordance with MIL-G-45204C standard for metal material: tungsten copper, copper alloy, KOVAR, INVAR, stainless steel and other materials.
Chemistry nickel: in accordance with MIL-C-26074E standard for all metal materials.
electrolytic nickel: nickel sulfate, nickel sulfamate
in accordance with QQN-290A'MIL -P-27418 standard for all hardware functional material.
Function silver: in accordance with QQ-S -365D standard for silver metal material; copper, tungsten KOVAR, INVAR, copper alloy, stainless steel and other materials
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