... 60", Sch10s-Schxxs Steel butt weld pipe fittings1. Specifications:Material: Carbon steel, Alloy steel, Stainless steelCarbon steel: ASTM A234 WPBAlloy steel: ASTM A234 WP11 ... exchanger, metallurgy, refinery, machinery, steel fabrication, shipbuilding, water disposal ,construction, aviation, textile, etc.3. Certificate: ISO9001 Quality System4. ... and have business talk. welded alloy steel pipe fitting