Lithium-ion batteries have become hotspots in energy research due to their higher energy density, long service life, and smaller volume compared with lead-acid, nickel-cadmium, nickel-metal hydride, and other batteries, and no memory effect.…
Polycarboxylate superplasticizer has high surface activity and good foam retention, which will affect the strength of concrete due to excessive gas content.…
Hollow glass sphere is widely used in glass fiber reinforced plastic products, syntactic foam, artificial marble, compound wood, sound insulation heat preservation material, atomic ash...…
Guotai Junan released a research report saying that under the background of carbon neutrality, the scarcity of coal mines is prominent, and the value of assets will continue to increase. The high point of capital expenditure in the coal industry appe…