- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
用钢棒,通常的 7/8-中 (2.22-cm) 股票和约 4 英尺 (1.2 米) 长,与每一端削尖,弯曲出 3 到 6 英寸 (7.6 至 15.2 厘米) 正在从每一端的折弯 45 度的角度。
Industry:Mining