镦头机：用于生产滚子的冷锻设备。
HEADER machine: Cold forging machine used to produce rollers.
高速镦头机：具有比旧式镦头机更快滚子加工速度的新型冷锻设备。
HIGH SPEED HEADER: Newer type of cold forging machine which produces rollers at a faster rate than the old style machine.
用多工位冷镦机生产半圆头方颈螺栓 ，对方颈部分的成形采用切挤成形工艺 ，用这种方法生产的产品 ，外形美观 ，质量稳定。
The cup head square neck bolts are made on the multiple station cold header, and cut squeeze technology is used to get the square neck.
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