00:45 #generator Biogas generators with customised power
01:00 #Q235B carbon steel #biogas digester Welding process for the main part of anaerobic reactors--Steel plate.
00:45 #Film #gas #holder Professional storage equipment for storing methane, hydrogen sulfide, nitrogen and other inert gas
00:45 #biogas digester #Q235B carbon steel
00:45 #steel #tank #Enamel Enamel, electrophoresis assembled steel tank, with acid and alkali resistance, corrosion resistance.
03:00 00:19 new energy industry, environmental protection, sewage, air pollution control, large-scale biogas project design
00:19 development of new energy industry, environmental protection, sewage, air pollution control