2024 New Black Granite Leveling Ruler

• After-sales Service: Online Service
• Warranty: Online Service
• Type: Inspection Surface Plate
• Material: Granite
• Measurement Object: Length
• Range: 0～500mm
• Model NO.: 100*100~3000*8000mm
• Resolution: 0.01mm
• Precision: 0.01mm
• Measure Method: Manual
• Accuracy: A
• Precision Measuring Device: Precision Measuring Device
• Certification: ISO
• Customized: Customized
• Accessory: Stand
• Usage: Inspection
• Shipping: Sea
• Color: Black
• Transport Package: Wooden Package
• Specification: Can be customized
• Trademark: huawei
• Origin: China
• Production Capacity: 100 Piece/Month

Product Description

2024 new black granite leveling ruler
Granite leveling rulers are also known as granite straight ruler,granite leveling rulers
are manufactured according to International standard to ensure the high quality.The
products are always made into ribbed plate or box-type, our company use the scraping
process to improve the precision of the products. Since the products are customized,
so the customers can customize the size according to the actual needs.
Therefore, precision black granite leveling  ruler export to foreign countries 
is popular in all the world.

The Specification
Name	precision black granite leveling  ruler export to foreign countries
Material	Jinan Green Granite
Proportion	2970-3070 Kg/m²
Compressive Strength	245-254 Kg/m²
Modulus of Elasticity	1.27-1.47N/mm²
Linear Expansion Coefficient	4.6×10-6/ºC
Water Absorption	0.13%
The Hardness	HS70
Usage	A. As a precision reference measurement tool B. Measure the flatness, straightness of machine table, rail and precision plate
Package	Wooden Box

Specification(mm)	Line or flatness of working surface		Parallel between working surfaces		Verticality bwteen side and working surface
	Precision grade( μm)
	0	0	0	0	0	0
500*100*40	1.6	2.6	2.4	3.9	8	13
700*100*40	2.1	3.5	3.2	5.3	11	16
1000*120*40	3	5	4.5	7.5	15	25
1000*120*60	3.2	5.3	4.9	7.9	15.6	25.8
1200*120*60	3.69	6.2	5.4	8.5	16.4	26.5
1500*150*60	4.2	7.2	6.5	11	21.5	36.2
1600*150*80	4.4	7.4	6.6	11.1	22	37
2000*200*80	5.4	10	8.1	13.5	27	45
2500*200*80	6	14.3	10.2	13.8	35	69.6
3000*200*100	8	16	12	14	42	81.2

Advantages
A. The granite is after a long-term natural aging, the organizational structure is uniform,
the expansion coefficient is small, the internal stress completely disappeared, as a result
of which the precision is very high.
B. Good rigidity, high hardness, strong wear resistance.
C. Not afraid of acid and alkali corrosion, will not rust; do not need oiling, easy to maintain, 
long service life.
D.  Will not scratch, will not limited by the constant temperature conditions, and can maintain
the measurement precision at room temperature.
E. Will not be magnetized, and can move smoothly while measuring, no tight feeling, free of
the affect of moisture, good flatness.
Granite leveling ruler has the following characteristics:

1.	High quality with competitive prices
2.	Rust-proof technology has obtained a patent
3.	Factory with more than 40 years' experience
4.	Professional design and strong production capacity