International oil prices extended their decline after comments from Federal Reserve Chairman Jerome Powell added to concerns that U.S. interest rate hikes will slow economic growth and data from the American Petroleum Institute showed U.S. crude inve
Chromium carbide powder is a high melting point inorganic material with good wear resistance. It is used as a thermal spray material for metal surface protection and is also commonly used as cemented carbide.
In May, Spain and Portugal approved 12-month caps on gas prices for power generation to smooth out electricity prices and ease the burden on industry and residential users. Spain's
The European Union is seeking to boost energy cooperation with African countries to help wean them off dependence on Russian gas imports.Bloomberg said, recently, according to a draft EU file, African countries, especially in western Africa Nigeria,
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
There are two general cement-based foaming materials, chemical foaming and physical foaming.
Aerogel is a form of solid material,the smallest dense solid in the world.The density is 3kg/cubic meter.There are many types of aerogels,including silicon,carbon,sulfur,metal oxides,and metals.
Prestressed Concrete is a kind of concrete component mainly used in construction engineering and bridge engineering.
As a new type of manufacturing technology, 3D printing has shown very broad application prospects, and has shown a strong development momentum in more fields.