granite parallel

We are professional in manufacturing and exporting all kinds of granite products.

granite parallel: For inspecting the parallelism for work-pieces also for replacing the working blocks at the same height when required.

The physical properties of the granite are as follows:

1.       Granite mainly consists of pyroxene, plagioclase, a small amount of olivine, biotite and

 micromagnetite. 
2.  Its structure is hard and compact. 
3.  It has solidified over millions of years resulting in its homogeneity, reliable stability, high 

strength and super hardness.
4.  Can keep high precision under heavy load. 
5.  Be suitable for measuring applications.

6.  Specific gravity:   2970-3070kg/m3.

7.  Compressive strength:   245-254N/mm2.

8.  Elastic modulus:  1.27-1.47 N/mm2.

9.  Linear expansivity:   4.61*10^-6/Celsius degree.

10. Water absorption:  

11. Shore hardness:   Higher than Hs70.