and local companies still need to speed up their efforts to improve their competitiveness.

Hydrogen is a simple substance formed from the hydrogen element, with the chemical formula H2. It is an extremely flammable, insoluble in water, colorless and odorless gas under normal temperature and pressure. Hydrogen has the characteristics of non-toxic, good reducing properties, green and pollution-free, good antioxidant properties, low molecular weight, and high combustion calorific value.…