Applications:Widely used for checking straightness and marking purposes.Granite Straight Edges are hand scrapped or lapped to achieve the desired accurace as per standards.

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.