As a clean, efficient, safe and sustainable new energy, hydrogen energy has become an important direction of low-carbon energy development and transformation.
On August 2, the special hot work of No. 149 valve room of the second line of the national pipeline network from west to east was held in Changjiang Village, Chijiang Town, Dayu County.
Recently, the State Administration for Market Regulation issued Announcement No. 12 of 2022, approving the release and implementation of 20 national metrology technical specifications including