drilling steel中文什么意思

钢钎

钻钢

钻头

• drilling:    adj. 尖锐的，辛辣的。 dril ...
• steel:    n. 1.钢，钢铁。 2.钢制品；刀 ...
• seamless steel tube for drilling:    钻探用无缝钢管

例句与用法

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1. Rock drilling equipment . hollow drill steels in bar form
   凿岩钎杆用中空钢
2. Rock drilling equipment - hollow drill steels in bar form
   凿岩钎杆用中空钢
3. Tungsten carbide drill steel
   碳化钨硬质合金钢钎
4. Flexible flat drill steel
   挠性扁钢钎
5. Hollow drill steel
   凿岩用中空钢