They melt a little ball of lead and then drop it into a bucket of water.
他们将小铅球融化，然后滴进一桶水里。
Wear resistance high manganese steel 11-14%, for the excavator bucket, ball mill liner.
含锰11- 14%的钢有极高的耐磨性，用于挖土机铲斗，球磨机衬板等。
Wear resistance high manganese steel 11-14%, for the excavator bucket, ball mill liner.
含锰11- 14%的钢有极高的耐磨性，用于挖土机铲斗，球磨机衬板等。
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