roll forging 轧锻 ; [机] 滚锻 ; [机] 辊锻
forging roll operator 辊锻机操作员
semi-steel forging roll 锻造半钢轧辊
roll forging machine [机] 辊锻机 ; 轧辊锻压机
finishing roll forging [机] 成形辊锻
preforming roll forging [机] 制坯辊锻
line of roll forging [机] 辊锻线
finish roll forging 成形辊锻
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