DIN 20378:1990-10 Drilling hammers; taper gauges for tapered connections of drill rods and bits

标准编号：DIN 20378:1990-10

英文标题：Drilling hammers; taper gauges for tapered connections of drill rods and bits

德文标题：Bohrhämmer; Kegellehren für Bohrstangen- und Bohrkopfkegel

发布日期：1990-10

标准预览图