Dentistry; dental rotary instruments; number coding system; part 2: shape and specific characteristics (ISO 6360-2:1986 includes AMD 1:1991); german version EN 26360-2:1991 + A1:1991
牙科;牙科旋转器械;数字编码系统;第2部分:形状和特性(ISO 6360-2:1986包括AMD 1:1991);德文版EN 26360-2:1991+A1:1991