granite component, Granite Surface Plates, Granite Machine Parts, granite inspection surface pla, grnaite squares, ranite straight ruler
Grade | Size | Surface | Price |
---|---|---|---|
A | ** | Polished | $158/Pieces |
Stone Name:
Origin:China
granite component, Granite Surface Plates, Granite Machine Parts, granite inspection surface pla, grnaite squares, ranite straight ruler
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%