Inquiry (采购产品): pumice I use pumice after soldering silver and copper. Am interested in buying 50 Lbs or so, but don't know what grit to order. We use a common green scrubbie with the pumice to clean off scale from soldering, a powder or fine grit. **** Hidden Message ***** Patrice Case 14454 Company: SUNY-Geneseo E-mail: casep@geneseo.edu **** Hidden Message ***** casep@geneseo.edu
