Original
By certification 
Granite square master
Our products has high degree of accuracy with DIN876 Standard.
Product Speciality:
1. Made of high quality Jinan Black Granite.
2. High precision and high stability.
3. No rust and anti corrosion.
4. Non magnetization.
5. Good abrasion resistance.
We can provide our customers with a great variety of granite precision components;
TYPE (mm) |
Squareness beteween abjacent measuring surfaces |
straightness of measuring surface |
Parallelism between opposite measuring surface |
|||
Precision grade | ||||||
00 |
0 |
00 |
0 |
00 |
0 |
|
150*150 |
1.8 |
3.5 |
0.8 |
1.6 |
1.8 |
3.5 |
160x160 |
2 |
4 |
0.8 |
1.7 |
2 |
4 |
200x200 |
2 |
4 |
0.9 |
1.8 |
2 |
4 |
250x250 |
2.2 |
4.5 |
1 |
2 |
2.2 |
4.5 |
315x315 |
2.6 |
5.2 |
1.1 |
2.3 |
2.6 |
5.5 |
400x400 |
3 |
6 |
1.3 |
2.6 |
3 |
6 |
500x500 |
3.5 |
7 |
1.5 |
3 |
3.5 |
7 |
Material: Black Jinan Granite
Min. Order: 1 Piece
Port: Qingdao, China
Production Capacity: 50000
Payment Terms: L/C, T/T, D/P, Paypal
Our products are widely exported to the US, Japan, Australian, Thailand, New Zealand, Vietnam and England, Germany and so on.
PS: We also can produce as customers' request or drawings.
