Granite Comparator Stand

Granite Comparator Stand are made of black granite and are precision lapped to grade – 0 accuracy. Heavy duty vertical post and adjustable gaging bracket for maximum stability and durability.

 Place of Origin: Hei Bei, China (Mainland)

 Brand Name: YiTian Brand

 Material: Natural Black Granite

 Accuracy: Grade “00” “0”  Flatness test by: Electronic Level Meter

 Test Standard: According to DIN/JIS/GB

Packaging & Delivery

Packed with Delicate Aluminum Case for small size; Wooden case for large size

Delivery time: from one week to one month

Product Specialty:

 Made of high quality Natural Black Granite

 High precision and high stability.

 No rust and anticorrosion.

 Non magnetization.

 Good abrasion resistance.

Physical Property of Natural Black Granite:

 Specific Gravity: 3.03 g/cm3

 Shore Hardness: > 70Hs-80Hs

 Tensile strength: 211Kg/cm2

 Compressive Strength: 245-254Mpa

 Linear Expansion Coefficient: 4.61´10--6/°C

 Elastic Modulus: 30-50Gpa

 Water Absorptive: ≤0.13%