Inquiry (采购产品): information Sir/Madam we are using 99% purity oxygen in copper brazing. Fuel is propane gas. We now wish to use 90% purity oxygen from P.S.A oxygen generator due to easy availbality and low oxygen cost.We want to know whether 90% purity oxygen would give same brazing quality and same brazing speed as we are getting 99% purity oxygen . If not then what would be effect of lower oxygen purity on brazing speed and brazing quality. **** Hidden Message ***** lallan gupta IND Company: C.R.E industry E-mail: dipendu_leo@yahoo.com **** Hidden Message ***** dipendu_leo@yahoo.com
