钻杆外径Drill pipe outer diameter ： Ф 80mm≤OD≤ Ф250 mm
钻杆长度Drill pipe length ：≤14m
焊缝规格Welded seams specs: weld seam for 1~6 segments, each weld width ≤ 30 mm, the welding zone height 2~4 mm, 18°slope welding
主轴转速Spindle rev:0.1~3r/min
焊枪摆动速度Welding gun swing speed:0.1~3m/min