技术要求:
Technical requirements:
1.材质：黄铜
1.Material: brass
2.打铜底0.5μm,镍2μm，雾锡3~5μm
2.Copper base 0.5μm, nickel 2μm, Matte tin 3~5μm
3.不得有变形，毛刺等缺陷
3.No deformation, burr and other defects
4.插脚尖部符合可焊性要求
4.The tip of the insert foot meets the solderability requirements
5.螺纹需符合通止规要求
5.The thread shall meet the requirements of the stop rule
6.螺纹扭距：251bft
6.Thread torque: 251bft
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