Lafarge and Egge is Northrop Grumman Approved Northrop Grumman Approved Fusion Welding AWS D17.1 – Fusion Welding for Aerospace Applications ACS-PRS-1151 – Welding of Tubular Joints Supplier Report Request for Quote Please enable JavaScript in your browser to complete this form.Name *FirstLastEmail *Phone *Topic *General InquiryTubingWeldingMachiningProject Description *When do you need your parts or project delivered by? *Send Message