"ZKZ, LLC" works on Russian market since 2002. Plants personnel for current moment is around 240 people.Manufacturing includes whole production cycle from blank to end product: receipt of cast section, heat treatment, mechanical treatment, quality control for compliance with the requirements of standard technical documentation on every stage of production process. Enterprise produces blanks with preliminary and final mechanical treatment of detail under Russian and international standards (ASME B16.5-2009, ASME B 16.47 a, ASME B 16.47 b, DIN EN 1092-1:2007-11): Flange, Preventer, Fitting, Housing, Retaining ring, Ring blank, Junction blank, Ball.Also enterprise produces non-standard items under clients drafts."ZKZ, LLC" produces rind blanks by centrifugal electroslag casting (CES) from carbonic, alloy and high-alloy steel.