sell granite square box

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sell granite square box
Posting date : Jan 20, 2011
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HS-CODE
72-
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Detailed Description
Physical Property ofJi Nan BlackGranite: Specific Gravity: 2970-3070kg/m3 Compressive Strength: 245-254Mpa Elastic Modulus: 30-50Gpa Linear Expansion Coefficient: 4.61x10-6/0C Water Absorptivity: ≤0.07 Shore Hardness: Above 70Hs The " Square Machine "brand of granite measuring tools have the following characteristics: 1 High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature. 2 No-rust and anticorrosion. 3 Wear resistance long service life. 4 Any cutting or scraching for working surface does not bring about roughedgeswhich might influence its measuring precision. 5 Non magnetization. 6 Glossy surface without sluggishness when the workpieces or tools are moving on it.

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