A "steel sharpening steel" relationship requires the effort and dedication of true friendship.
“铁磨铁”的关系需要努力和奉献，才有真正的友谊。
Replaceable self-sharpening plastic punches are able to significantly outlast conventional steel punches in most applications.
可更换的自锐塑料拳能够显着持续时间超过普通钢拳打在大多数应用中。
Our razor sharp plastic punches are self-sharpening and are able to significantly outlast conventional steel punches in most applications.
我们的锋利塑料冲是自激化，并能显着持续时间超过普通钢在大多数应用中拳。
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