... http://www.fuqifittings.com, nickel 201 bw concentric reduce, nickel welding reducer, nickel eccentric reducer, nickel concentric reducer manufacturers and ... , MSS SP 43-1991 , MSS SP 75-2008 Technique Butt welding Seamless Surface Finished Sand Blasting Polishing Quality Control 100 ... or as your requirement with drawing 5.Inspection for welding line: X-ray Press test: hydrostatic test