NF L22-188-1976 标准详情
- 标准号:NF L22-188-1976
- 中文标题:凸头带B.N.A.E十字槽和锥顶120°沉头螺钉.Sim螺纹
- 英文标题:raised 120 degrees countersunk head screws with b.n.a.e. cross recess and cone point. sim thread. vis te frais 120 degr bomb empreinte cruciforme bnae bout pilote - filetage sim
- 标准类别:法国国家标准
- 发布日期:1976-10-01