标准号:BS EN ISO 6411-1997
中文标准名称:技术制图.中心孔的简化画法
英文标准名称:Technical drawings - Simplified representation of centre holes
标准类型:J04
发布日期:1997/12/15 12:00:00
实施日期:1997/12/15 12:00:00
中国标准分类号:J04
国际标准分类号:01.100.20
适用范围:This International Standard specifies the simplified represen-tation of centre holes and their designation. Simplified representation of centre holes may be used particularly when it is not necessary to show the exact form and size and where the designation of standardized centre holes is sufficient for infor-mation.