Spiral drill collars made in our plant are in accordance with api standard 本厂制造的螺旋钻铤按照“ api ”标准生产和验收。
Long auger bit 长螺旋钻咀
Standard practice for sampling soils and contaminated media with hand - operated bucket augers 使用手动斗式螺旋钻的土壤和被污染介质取样的标准规程
Standard practice for using hollow - stem augers for geotechnical exploration and soil sampling 地质技术勘探和土壤取样用空茎轴螺旋钻使用的标准操作规程
Standard guide for use of hollow - stem augers for geoenvironmental exploration and the installation of subsurface water - quality monitoring devices 亚表层水质检测装置安装和地理环境勘探中空螺旋钻使用的标准指南
Starting from any altitude and orientation , and to the pilot right start your auger . the helicopter does not have to be pirouetting when the auger starts 先将直升机保持在任意的高度及方向，朝操控者的右侧开始执行螺旋钻的动作。在执行螺旋钻的动作之前，机体不须保持自旋。
