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| Port | shenzhen |
| Packaging | Tray or bottle packaging |
| Lead Time | 45-60 days |
Ruby ball ,sapphire ball is
one of corundum gemstones. it is mainly characterized by wear
resistance, high hardness, corrosion
resistance
and small friction
coefficient.
it is an idea
material
for
bearing.
Our Capabilities:
Tolerance in Diameter: +/-0.001mm
Roundness<0.4um
Surface finish：S/D:20/10（Ra25nm）
3rd Park of langxia,Songgang of Baoan District,Shenzhen City,Guangdong province,China
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