Inquiry (采购产品): cylindrical washers Do you make a steel washer that is flat on 1 side, and cylindrically concave on the other. The washer would be used to effect a transition from 2-1/2" and 3" pipes. **** Hidden Message ***** BERNARD WEINSTEIN SANTA FE, NM 87504 USA Company: NMDOT Phone: 5058270983 E-mail: bernard.weinstein@state.nm.us **** Hidden Message ***** bernard.weinstein@state.nm.us