Steel
| Thu 04 Jun 2026
Beijing, June 5 -- Henan Zhongyuan Special Steel Equipment Manufacturing has sought patent for Forming Method of Large-size Super Duplex Stainless Steel Blind Hole Flange. This invention was developed by Si Yahui, Lei Chong, Zheng Anxiong, Wang Wen, Sun Zhenhuan, Mi Zhiyang, Jin Huiye, Liu Ningning, Liu Xinping, Meng Lingxian an..