Inquiry (采购产品): Testing specification 3/4 inch , 304 stainless pipe couplings,150 psi, if you deal in these type parts, to what spec do you make them or test them to? Thanks. **** Hidden Message ***** David Hunt, Jr. MN 55987 USA Company: Fastenal Title: Asst Mgr E-mail: dhunt@fastenal.com **** Hidden Message ***** dhunt@fastenal.com