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The invention relates to an electric threading apparatus in a punching die, belonging to the machine finishing field.
本发明涉及一种冲压模内电动攻丝设备,属于机械加工领域。
youdao
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The invention relates to an electric threading apparatus in a punching die, belonging to the machine finishing field.
本发明涉及一种冲压模内电动攻丝设备,属于机械加工领域。
youdao