The granite right angle ruler is used to check verticality and measure workpiece flatness, verticality, and straightness, with plane accuracy and verticality standards of GB6092-85 and a side tolerance of 0.02. Made from black granite (plagioclase as the main mineral, with small amounts of olivine and biotite, and trace magnetite), it has uniform texture, good stability, high strength and hardness, and retains high accuracy under heavy loads; weight-reduction holes help reduce weight and facilit
Product Description
Place of Origin: Hebei
Warranty: 1 year
Customized Support: OEM, ODM
Brand Name: Storan
Model Number: 1008
Material: Granite or marble
Color: Black
Package: Plywood box
Port: Tianjin
Product Name: Granite angle ruler
Keyword: L-shaped ruler
Size: 250 × 160 × 40 mm
Function: Test measurement
Shipping: By sea
Precision: Grade 00 (ref.)
Packaging Details: Plywood
Selling Units: Single item
Single Package Size: 30 × 40 × 20 cm
Single Gross Weight: 15 kg
Quantity (pieces) | 1 - 1,200 | > 1,200 |
Lead Time (days) | 8 | To be negotiated |
Specification | |
Name | Granite Square Master Tri Angle Ruler, Grade 00 |
Material | Granite |
Proportion | 2,970 - 3,070 kg/m² |
Compressive Strength | 245 - 254 kg/m² |
Modulus of Elasticity | 1.27 - 1.47 N/mm² |
Linear Expansion Coefficient | 4.6 × 10-6/℃ |
Water Absorption | 0.13% |
Hardness | HS70 |
Usage | Industrial production and laboratory measurement |
Package | Export package, plywood |
Product Parameter

Product Detail Drawing





