Brush Paint & Varnish (Flat) Size-25 Mm Of Rubber Type To Is:384 (Part -1) /2023 (Sh Revision), Type Of Wood As Specified In Is:384 (Part -1) /2023 (Sh Revision) And Bristle To Is:1844/1993 Second Revision (Reaffirmed 2018, Amndt.-1), Quality Of Bristle Should Be Selected Quality As Specified In Is:1844/1993 Second Revision (Reaffirmed 2018, Amndt.-1) And Type Of Bristle - Type-B Semi Stiff As Per Approved Sample With Proper Marking During Bulk Supply.