supply of grinding wheel plain, type-1, size-outside diameter-350mm x thickness-50 mm x bore diam eter-127mm as per is:2324 (part-1)-1985 (rev.2),amendment no.3 of jan.2012 & is:2324 (part-2)- 1985(re v.2), amendment no. 1 of feb-1996. designated as c46 m 5 v 4 33m/s and marked as per is:551 - 1989(re v.2), reaffirmed-2005 or latest. make:- sterling abrasive or universal or norton or grind wellnort on or carborundum or hindustan abrasive or 3m. [ warranty period: 30 months after the date of de