Huwad na Matel Elbow
ASME B16.11 - ForgedFittings, Socket - Welding at Sinulid
MSS SP-43 -Mga Wrought at Fabricated Butt-Welding Fitting para sa Mababang Presyon, Mga Application na Lumalaban sa Kaagnasan
MSS SP-95 - Swage (d) Nipples at Bull Plugs
BS3799 -Pagtutukoy para sa Steel pipe fittings, screwed at Socket-welding para sa industriya ng petrolyo
Mga pamantayan:
ASME SA234/SA234M-Specification para sa Piping Fittings ng Wrought Carbon Steel at Alloy Steel para sa Moderate at High-Temperature na Serbisyo;
ASME SA105/SA105M-Specification para sa Carbon Steel Forgings para sa Piping Applications;
ASTM A182/A182M-Standard Specification para sa Forged o Rolled Alloy at Stainless Steel Pipe Flanges, Forged Fittings, at Valve at Parts para sa High-Temperature Service;
ASTM A350/A350M-Standard Specification para sa Carbon at Low-Alloy Steel Forgings, Nangangailangan ng Notch Toughness Testing para sa Piping Components;
ASTM A403/A403M-Standard Specification para sa Wrought Austenitic Stainless Steel Piping Fitting;
ASTM A420/A420M-Standard Specification para sa Piping Fittings ng Wrought Carbon Steel at Alloy Steel para sa Serbisyong Mababang Temperatura;
ASTM A815/A815M-Standard Specification para sa Wrought Ferritic, Ferritic/Austentic, at Martensitic Stainless Steel Piping Fittings
