sprue puller

例句：

1. 1. The machineuses a sprue puller toremove the solid material from the moltensteel.
   这台机器使用拔管器来从熔融钢中去除固体材料。
2. 2.The sprue puller is essentialfor maintaining the cleanliness of the moldcavity.
   拔管器对于保持模具腔的清洁至关重要。
3. 3. During the casting process, thesprue puller helps to removeany impurities that may have settledin the mold.
   在铸造过程中，拔管器帮助去除可能已经积聚在模具中的任何杂质。