Product description:

• Adopted high quality ''Jinan Qing'' natural material of granite, granite surface plate is manufactured by mechanical processing and manual polishing
• It doesn't only own the interest of black gloss, precise construction, and outstanding characters - nice stability, high strength and hardness, etc. But also it is no rust, acid & alkali-proof, no magnetization, nice abrasion resistance and Can keep stable at normal or high temperature.
• The main mineral ingredients of granite are pyroxene, anorthose, less olivine, black mica and less magnetite. Aging through hundreds of million years, the granite can still retain even character, stable, high strength and hardness, and can keep high precision at Heave duty. It is suitable for industrial production and measuring works at laboratory.

Main usage: Lineation, Measurement. Inspection tools

 Parameters:

1. Specific Gravity (Proportion):3.30g/cm3 or 2970-3070kg/m2
2. Shore Hardness:>70Hs-80Hs
3. Tensile strength:211Kg/cm2
4. Compressive strength:254-254Mpa
5. Linear expansion Coefficient:4.61’10-6/℃
6. Elastic Modulus:30-50Gpa
7. Water Absorptivity: ≤0.13%
8. Flexible grinding capacity:1.27-1.47N/mm2

Specification  Length x Width x Thickness (mm)	Weight (kgs)	Precision Grade (μm)
		000	00	0	1
300 x 200 x 50	17	1.5	3	6	12
300 x 300 x 50	19	1.5	3	6	12
400 x 300  70	25	1.5	3	6	12
400 x 400 x 70	48	2	3.5	6.5	13
630 x 400 x 100	76	2	3.5	7	14
630 x 630 x 100	155	2	4	8	16
800 x 500 x 130	156	2	4	8	16
1000 x 630 x 130	284	2.5	4.5	9	18
1000 x 750 x 150	338	2.5	5	9	18
1000 x 1000 x 150	450	2.5	5	10	20
1600 x 1000 x 200	963	3	6	12	24
2000 x 1000 x 200	1200	3.5	6.5	13	26
1600 x 1600 x 300	2312	3.5	6.5	13	26
2000 x 1600 x 300	2890	3.5	7	14	28
2500 x 1600 x 300	3612	4	8	16	32
3000 x 2000 x 500	9030	4.5	9	18	36
4000 x 2000 x 500	12040	5.5	11	22	44
6000 x 2000 x 700	25284	7.5	15	30	60