... can manufacture and supply.Threaded Full Couplings,Website:http://www.petrosteels.com, Threaded Half Pipe Coupling, Various Sizes and ... AvailableButt Welded Couplings, Threaded Couplings Pipe Fittings with Different Full, Half Sizes and MaterialsDuctile Iron Grooved Coupling, ASTM A536, ... 80mm, BSPT/BSP/NPT Thread, UL/FM/CEASTM A105 Galvanized Full Coupling, PN400 (3000 LB), DN80 (3 Inch), Threaded ...