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镦管滚丝机是在多找矿、找富矿的战斗中，为解决地质勘探工作中大量的φ42、φ50毫米的钻杆（图1）加工任务而设计制造出来的。无缝钢管工厂通常提供φ42×5×5000毫米、φ50×5.5×5000毫米（外径×壁厚×
The stern tube rolling machine was designed and manufactured to solve the processing tasks of a large number of φ42 and φ50 mm drill pipes (Fig. 1) in geological exploration work in the course of many prospecting and finding rich mines. Seamless steel pipe factory usually provides φ42 × 5 × 5000 mm, φ50 × 5.5 × 5000 mm (outer diameter × wall thickness ×