May 7, 2026

Complete GOST 33259 flange dimensions & pressure ratings table for Kazakh & Russian buyers. Learn how Jiaji Forging supplies certified flanges for TCO, NCOC, and SOCAR projects.

Complete guide to EN 1092-1 flange testing & certification for EU export 2026. Learn about EN 10204 3.1, PED 2014/68/EU, CE marking, and how Jiaji Forging ensures compliance for oil & gas, petrochemical, and marine applications.

Discover the top 5 custom large diameter blind flange manufacturers for 2026, including Jiaji Forging. Learn about manufacturing processes, NDT testing, and procurement tips for oil & gas and petrochemical projects.