AISI 4340 Steel 36CrNiMo4 1.6511 En24 817m40 Sncm439 API 6A Wellhead Dsa Double Studded Adapter
AISI 4130 Alloy Steel Uns G41300 SAE 4130 25crmo4 1.7218 708A25 Scm430 Wellhead Double Studded Adapter Flange Dsa
Choke and Kill Manifold Components Wholesale Manufacturer
ANSI4130, ANSI4340 Steel Forged Tubes Hollow Bars for Oil and Gas Industry Use