Flatness testing instrument Granite Square Square

Granite square gauge:

In order to be easy to processing and decrease the weight, the lightening holes are added.

Material: granite

Standard: JB/T 10027-99

Specification: 160x160-500x500mm or customize

Hardness of the working surface: HS70

Surface treatment: ground finish

Precision grade: 00-0

Packaging: plywood box

Physical characteristics: 
Specific gravity,2970----3070kg/ 
Compressive strength, 245---254N/ 
Coefficient of linear expansion,4.6×10~6°C 
Water absorption,0.13% 
Shore hardness,more than Hs70

 Application :

1.Granite square edge used to test the flatness of parts. Granite Measuring Tool is the basis for industrial inspection equipment, suitable for instruments, precision tools, machinery parts inspection and high precision measurements. 
 2.Granite square edge stone escape from the main minerals, plagioclase, minor olivine, biotite, and trace magnetite composition, texture, uniformity, stability, strength, high hardness, can be heavy to maintain accuracy. 
 3.Granite square edge is mainly used for industrial production and laboratory measurements, plane precision standard GB6092-85, vertical standard GB6092-85. 

shipping:

1. EMS
2. EXPRESS: around 5-7 working days to arrive
3. INTERNATIONAL AIR MAIL: around 2-4 weeks to arrive
4. Shipping : around 30-60 days to arrive

Packing:

After inspection the filters are packed in plastic bags and then carefully packed in cartons.

FAQ