Hyundai Steel Develops New Gas Valve to Block Harmful Emissions

SEOUL, Dec. 23 (Korea Bizwire) — Hyundai Steel Co., South Korea’s No. 2 steelmaker, has developed the world’s first technology to fully block air pollutants emitted from blast furnaces, successfully introducing them to the actual steelmaking process. The company said Tuesday it had installed clean gas valves for furnace shutdowns or re-feeding hot blasts to [...]