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【预订】General Spatial Involute Gearing
【预售】Involute Spur Gears - Design and Lathe Cutting
海外直订The Geometry of Involute Gears 渐开线齿轮的几何
海外直订General Spatial Involute Gearing 通用空间渐开线齿轮传动
【4周达】General Spatial Involute Gearing [9783642079184]
【4周达】General Spatial Involute Gearing [9783540442042]
海外直订Involute Spur Gears - Design and Lathe Cutting (Mechanical Engineering Series) 渐开线直齿轮.设计和车削（机
【4周达】The Geometry of Involute Gears [9781461291466]
Module 0.5 M0.5 PA20 Degrees Bore 16mm #1-8 HSS Involute Gea
Mayitr 8pcs M1 HSS Involute Gear Milling Cutter Set 20 Degre
M1 PA20 Degrees Bore 22mm #1-8 HSS Involute Gear Milling Cut
Module 1 PA20 Degrees Bore 22mm #1-8 HSS Involute Gear Milli
