According to the material of the screen surface, the test screen is divided into: metal braided mesh test screen, metal perforated plate test screen, electric forming mesh.



The metal perforated plate test screen adopts the national standard GB/T6003.2-1997, in line with the international standard ISO3310-2:1990 R20/3, R20, R40/3 series, the screen material is copper, and the use of electrochemical processing.
Electroforming test screen is produced by precision electrochemical method, mesh size range :500-5um, mesh size absolute tolerance 2-3um, suitable for scientific research institutions, diamond is widely used.



| Product name | Diameter 200 test sieve for laboratory |
| Color | Nature |
| Usage | Material Screening and Testing in Laboratory |
| Feature | Laboratory use |
| Hole shape | Square hole |
| Surface treatment | No |
| Wire Diameter | 2.00-0.020 |
| Packing | Dust-proof bag + wooden support |
| Size of sieve hole | 8.00-0.038 |
| Screen size | 5/16#-600# |














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