People classify primary energy further. Any energy that can be continuously supplemented or can be regenerated in a shorter period is called renewable energy, and vice versa is called non-renewable energy. Wind energy, hydropower, ocean energy, tidal energy, solar energy, and biomass energ ---MORE---

On May 19th, local time, the World Gold Council stated that China has overtaken India as the world's largest gold investment market, and its demand for gold is more than double that in the first quarter of last year. In the first quarter of this year, China’s investment demand ---MORE---

Methanol Alias ​​alcohol or wood alcohol, is a colorless, transparent liquid, highly volatile, flammable. Methanol can be produced from natural gas, petroleum, coal, timber and other organisms. The most important raw material at the moment is natural gas, which accounts for a ---MORE---

Anti-theft door to enter millions of households, but the lock on the security door is a variety of attitudes. From the early mechanical locks to the modern electronic locks and smart locks, and to the new generation of smart locks represented by fingerprint recognition, that is, fingerprin ---MORE---

The Development and Reform Commission issued the "Opinions on Implementing a New Round of Rural Power Grid Rebuilding and Upgrading Projects". The construction and upgrading of rural power grids is a good news for electrical instrumentation companies. Grasping development opportu ---MORE---

After several price increases, Australian iron ore supplier Rio Tinto made a stabilization forecast. On May 19, Sam Walsh, head of Rio Tinto’s iron ore division, said, “In the third quarter, iron ore prices will only change by about 1% compared to the second quarter, and globa ---MORE---

International Energy Newsletter: Following the oil refining losses of RMB 6.132 billion in the first quarter, CNPC continued to expand its losses in April. Informed sources told this newspaper that PetroChina’s refining losses in April exceeded 5 billion yuan. The above news has no ---MORE---