Standard of China
|
Standard of international
|
Mesh
|
Polishing effect
|
Standard of China
|
Standard of international
|
Mesh
|
Polishing effect
|
W0.1
|
0-0.1
|
100000
|
Super mirror polishing
|
W12
|
8-12
|
1600
|
Normal polishing
|
W0.25
|
0-0.25
|
60000
|
|
W14
|
7-14
|
1500
|
|
W0.5
|
0-0.5
|
30000
|
Mirror polishing
|
W14
|
8-16
|
1300
|
|
W1
|
0-1
|
15000
|
|
W20-
|
10-20
|
1200
|
|
W1.5-
|
0-2
|
13000
|
|
W20
|
12-22
|
1000
|
|
W1.5
|
1-2
|
12000
|
Fine polishing
|
W20+
|
15-25
|
800
|
|
W2.5
|
1-3
|
10000
|
|
W28
|
20-30
|
700
|
|
W3
|
2-3
|
7000
|
|
W28+
|
22-36
|
600
|
|
W3.5
|
2-4
|
6500
|
|
W40-
|
20-40
|
500
|
Rough grinding
|
W3.5
|
2-4
|
6000
|
|
W40
|
30-40
|
450
|
|
W4
|
2-5
|
5000
|
|
W40+
|
35-45
|
400
|
|
W5
|
3-6
|
4000
|
|
W50
|
36-54
|
350
|
|
W6
|
4-6
|
3500
|
|
325/400
|
D46
|
320
|
|
W7
|
4-8
|
3000
|
Normal polishing
|
270/325
|
D54
|
270
|
|
W10
|
4-9
|
2500
|
|
230/270
|
D64
|
230
|
|
W10
|
5-10
|
2000
|
|
200/230
|
D76
|
200
|
|
W10
|
6-12
|
1800
|
|
|
|
|
|
Grit
|
Mest
|
Grit
|
Mest
|
80/100
|
80#
|
230/270
|
230#
|
100/120
|
100#
|
270/325
|
270#
|
120/140
|
120#
|
325/400
|
325#
|
140/170
|
140#
|
400/500
|
400#
|
170/200
|
170#
|
500/600
|
500#
|
200/230
|
200#
|
|
|
Grit
|
MBD0
|
MBD1
|
MBD2
|
MBD3
|
MBD4
|
MBD5
|
MBD 6/8
|
MBD10/12
|
SBD25-30
|
30/35
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
35/40
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
40/45
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
45/50
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
√
|
50/60
|
√
|
|
|
|
√
|
√
|
√
|
|
|
60/70
|
√
|
|
|
|
√
|
|
√
|
√
|
√
|
70/80
|
√
|
|
|
|
√
|
|
√
|
√
|
√
|
80/100
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
100/120
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
120/140
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
140/170
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
170/200
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
200/230
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
230/270
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
270/325
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
325/400
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|
400/500
|
√
|
|
√
|
|
√
|
|
√
|
√
|
√
|