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2020k16/2525m16梯形螺纹牙刀杆 车床刀具 ser3232p22正刀(装大刀片)
数控梯形外螺纹刀片16/22er 2/3/4/5/6tr prc车床合金t型螺纹刀头 16
锯齿型螺纹刀片/30°带3°/din513:22nr4.0sage cptm1120
三韩外螺纹刀片16er1.0/1.5/2.0/2.5/3.0iso/ag60/ag55 smx30
数控铜铝专用外螺纹刀片60度16er ag60/1.5/2.0铝用内螺纹牙刀粒