Granite surface plates
Microplan

Granite surface plates
Dharla - Economy serie

Lightened surface plates
in black granite

Black granite squares
for squareness testing

Black granite linear rules
for strightness testing

Black granite parallel rules
for strightness testing

Black granite paralelepipeds
for squareness testing

V-prisms
in black granite

Black granite cubes

Black granite cylinders
for squareness testing

Archimede - Large diameters
measuring instrument