Description

u  Material: Natural Black Granite

u  Accuracy: American Standard Grade“AA” "A", "B"

u  Flatness test by: Electronic Level Meter

u  Test Standard: According to DIN/JIS/GB/ Federal Specification GGG-P***3C

 

Physical Property of Natural Black Granite:

 

u  Specific Gravity:         3.*3 g/cm3

 

u  Shore Hardness:          > *0Hs**0Hs

 

u  Tensile strength:          **1Kg/cm2

 

u  Compressive Strength:         ******4Mpa

 

u  Linear Expansion Coefficient: 4.*1´****6/°C

 

u  Elastic Modulus:                 ****0Gpa

 

u  Water Absorptive:           ?0.*3%

 

Product Application:

u  Mainly used as detection for an important auxiliary tool in the measurement of the platform;

u  Important tool to verify difference or tolerance of products against flateness.