| 摘要 |
FIELD: machine-tool manufacture. SUBSTANCE: lathe frame carries spindle head 3 with main spindle 5, moving spindle head 4 with counterspindle 6 and at least one transverse carriage 8 with tools 12-16 positioned towards main spindle and with tools 17 and 18 installed towards counterspindle. If several carriages are installed on frame, at least one of them may be provided with steadyrest 43. EFFECT: high quality of machining. 4 cl, 5 dwgm
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