Pipe Nipple Manufacturer, Master Distributot of Pipe Fittings. Stainless Steel, Brass, Steel and Aluminum. Malleable Iron 160lb and 300lb Fittings, Brass Lead Free Fittings, Stainless Steel Grades 304 and 316 150lb Threaded Fittings. Import and Domestic Carbon Steel Welded Pipe Nipples, Schedule 40, Schedule 80. A106 Seamless Pipe Nipples, Schedule 40, Schedule 80, Schedule 160 and XXH. Stainless Steel Pipe Nipples, 304, 316, Welded and Seamless, Schedule 40, Schedule 80. Red Brass Pipe Nipples, Schedule 40, Schedule 80. Steel Domestic Welded Pipe, A106 Seamless Domestic and Import Pipe, Stainless Steel Domestic Pipe, Red Brass Pipe.