Smooth surface and smooth steel ball surface is exquisite, smooth and smooth without burr
Sturdy and steel ball, cost-effective
Polished several times without burrs
No pollution and no release of harmful substances
The steel ball bearings can be widely used in bicycles wheel, auto parts, bearings, casters, drawer slides, DIY projects, door locks, and a variety of small machinery applications, including skateboard wheels, inline skates, and electric motors, instrumentation and more.
وصف
Model: 10---20Material: Carbon SteelWhether standard parts: standard parts