S.C.J Pierries 47 mm chalni 4.8(42 plates)

It appears that you're referencing a product under the S.C.J brand named "Pierries 47 mm chalni 4.8 (43 plates)."

From the description, this could be a sieve or filter (chalni) with a 47 mm diameter and 43 plates of filtration, which likely refers to a specific number of perforated or mesh layers used for sifting or filtering materials. The "4.8" might refer to a size or grade specification, such as the mesh size or aperture.

This type of product could be used in various industries for sorting, sifting, or filtering fine particles, possibly in construction, food processing, or laboratory settings.