标准号:IS 8486-1977
发布日期:1978/3/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Lays down the procedure for the proper maintenance of tungsten carbide tipped integral stems conforming to IS: 7913-1975 'Specification for integral stems for percussive drilling' for obtaining the maximum efficiency from them.