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.
