Specification :

Material: Granite mainly consists of pyroxene, pkaguickase, a small amount of olivine , biotite and micromagetite.Its structure is hard and compact.It has solidified in a natural way over millions of year resulting in his hogeneity , reliable stability, high strength and super hardness .It can keep relatively high precision under heave load.It’ s suitable for measuring applications in factories and laboratories.

Applications: Used to measure verticality , planar degree and straightness of workpieces.

Salient Features:
1 Millions of natural aging, organiazational structure , tiny linear expansion cosfficient and no stress make the precision super
2 Super rigidity, high hardness and great resistance-wear
3 Do’ t oiling , longusing life and easy maintainability
4 Keep datum precision in normal tempreture.
5 No magnetized, no sluggishness, and not be effected by enviroment.