tungsten-free cemented carbide

例句：

1. 1.This tungsten-free cemented carbide tool is incredibly sharp and durable.
   这种无钨硬质合金工具非常锋利且耐用。
2. 2.The manufacturer claims that their tungsten-free cemented carbide products are environmentally friendly.
   制造商声称他们的无钨硬质合金产品是环保的。
3. 3. The engineer used this tungsten-free cemented carbide to machine a complex part for the new car.
   工程师使用这种无钨硬质合金来为新车加工复杂的部件。