drilling steel meaning in Chinese
钢钎
钻钢
钻头
Examples
- Rock drilling equipment . hollow drill steels in bar form
凿岩钎杆用中空钢 - Rock drilling equipment - hollow drill steels in bar form
凿岩钎杆用中空钢 - Tungsten carbide drill steel
碳化钨硬质合金钢钎 - Flexible flat drill steel
挠性扁钢钎 - Hollow drill steel
凿岩用中空钢