Granite Surface Plate Used in Product Inspection of Modern Industry and Scientific Fields
Raw Material:
Jinan Back Granite
Raw Material Physical properties:
Specific gravity: 2,970 to 3,070kg/m3
compressive strength: 245 to 254Mpa
Elastic modulus: 30 to 50Gpa
modulus of rupture:2500 to 2600kg/cm2
Linear expansion coefficient: 4.61 x 10-6/0C
Water absorption: ≤0.07
Shore hardness: above 70Hs
Characteristics:
High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature
No-rust and anti-corrosion
Wear-resistant, long service lifespan
Any cuts or scratch in surface do not influence measuring precision
Non magnetization
Glossy surface without sluggishness when work-pieces or tools are moving
Usage
For inspecting machine spindle and squareness work-pieces
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