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Products
CNC Machining Service
CNC Turning Service
CNC Milling Service
Aluminum Wrench
Aluminum Beads
Custom Screws
Custom Nuts
Precision Shafts
Standoffs/Spacers/Washers
Metal Parts
Industry Solutions
About us
Customer & Feedback
why choose Jeasnn
Equiment
Quality Control
News
Blog
Support
Project
Custom Packaging
FAQ
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The Function of The HR Hardness Machine
The HR Hardness Machine main function is measure product surface hardness
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