Material: high quality 45 ° steel
Outer diameter tolerance: f7-f8
Surface roughness: ra0.2-0.4
Hard chromium thickness: 0.015-0.025mm
Surface hardness: hv700-1150
Straightness: 0.05-0.10m/m

Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment .

We can accept customized package to meet different requirements :
1.Every item will separately pack into plastic bag ,component, module can be packed in anti static bag .
2.Some fragile products such as the display screen can be packed in bubble bag .
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.