W 306 alloy

例句：

1. 1.This new alloy is more durable than the old one.
   这种新型合金比旧的更耐用。
2. 2.The engineer used a W 306 alloy to make the gears.
   工程师用钨合金制作齿轮。
3. 3. The W 306 alloy is widely used in cutting tools due to its high hardness and strength.
   由于其高硬度和强度，钨合金在切割工具中被广泛使用。