此系列开关内的速动开关元件技术性能优异，触头为镍一金材料，保证可靠的电接触。
This action switch have good technical performance in the switch range, the contact is belong to nickel-golden material, it can prove the reliable electric contact.
此系列开关内的速动开关元件技术性能优异，触头为镍一金材料，保证可靠的电接触。
This action switch have good technical performance in the switch range, the contact is belong to nickel-golden material, it can prove the reliable electric contact.
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