Brush Paint & Varnish (Flat) Size-63 Mm Of Vulcanized Rubber Type To Is:384(Part-1)/2023 (Sh Revision), Type Of Wood As Specified In Is:384(Part-1)/2023 And Bristle To Is:1844/93 Second Revision (Reaffirmed 2018, Amndt.-1), Quality Of Bristle Should Be Selected Quality As Specified In Is:1844/93 And Type Of Bristle - Type-B Semi Stiff As Per Approved Sample With Proper Marking During Bulk Supply.