The United Nations Convention on the Carriage of Goods accelerates the global trade proces......

With the adoption of a new modernised global goods transport document agreement supported by the United Nations, global goods transport is set to become cheaper, faster and more flexible.

A Brief Discussion on the Viscosity and Viscosity Index of Lubricating Oil

When talking about the viscosity of lubricating oil, we must also mention another very important concept that seems similar to viscosity but is completely different, namely the Viscosity Index (VI) of lubricating oil.

Gathering automotive technological innovation and industrial upgrading, Automechanika（Shan......

The 2025 Shanghai Automechanika (Automechanika Shanghai) grandly hold at the National Exhibition and Convention Center in Shanghai from 26 to 29 November.

The Asian economy shows resilience amid tariffs and uncertainty

According to the latest article from the International Monetary Fund, despite facing multiple challenges such as high tariffs, weakened external demand, and policy uncertainty, Asian economies have shown resilience beyond expectations. This resilience is attributed to export-oriented strategies, technological investment, and policy support. To maintain strong and sustainable growth in the future, Asian countries urgently need to promote a transformation of their economic structures towards domestic demand and accelerate deepening regional integration.

Briefly describe the engine piston and its lubrication

The engine piston mainly consists of three parts: the piston crown, the piston head, and the piston skirt. The piston crown and the cylinder wall form the engine's combustion chamber, where the fuel-air mixture burns to push the piston downwards. The piston crown must endure high temperatures and pressures, with temperatures generally reaching 300-400°C and gas pressures up to 3-5 MPa for petrol engines and 6-9 MPa for diesel engines.

The 2025 China International Chemical Exhibition

From September 17 to 19, 2025, the 22nd China International Chemical Exhibition will be held at the Shanghai New International Expo Centre.

Between brittleness and toughness: the fog and path of the global economy in 2025

In this report, the International Monetary Fund raised its global economic growth forecast for 2025 to 3.0%, up from the 2.8% forecast in April, and expects further growth to 3.1% in 2026. This should be an encouraging indicator, but this 'report card' is inseparable from the short-term effects of a series of human interventions. The most critical variable is tariff policy. From July 27, China and the United States launched the third tariff negotiations in Stockholm, Sweden, and the two sides decided to extend the 'current suspension of tariffs' for another 90 days. Other economies such as Japan and South Korea reached a temporary easing agreement with the United States after tariff negotiations and postponed the deadline for further tax increases to August 1. This 'respite period' prompted enterprises and consumers to accelerate import and export operations, setting off a round of 'grabbing imports' effect, and promoting a brief jump in trade volume and enterprise investment. At the same time, the 'Big and Beautiful Act' passed by the United States has provided businesses with a large amount of tax incentives and fiscal spending, further stimulating economic growth. The strong rebound in U.S. stocks, the depreciation of the U.S. dollar, and the increase in capital inflows into emerging markets have collectively created an 'unexpectedly loose' financial environment, giving global markets signs of prosperity.

Talking about the difference between diesel engine oil and gasoline engine oil

Diesel engines and gasoline engines differ in structure, ignition method, compression ratio, fuel, and internal environment during operation. Diesel engines have a higher compression ratio, larger heat load, and use diesel with relatively higher sulphur content, making them more prone to corrosion. These differences lead to different requirements for lubricating oil: diesel engine oil needs better high - temperature purity, acid neutralization ability, and thermal oxidation stability, while gasoline engine oil requires better wear resistance and low - temperature dispersion. The base number of diesel engine oil is generally higher, and the nitrogen content is lower compared to gasoline engine oil. The exhaust gases produced by the two engines are different, so the focus of exhaust treatment varies. Diesel engine oil and gasoline engine oil also differ in bench tests. There is a type of general lubricating oil for gasoline and diesel on the market, but it has a more complex formula, is difficult to evaluate, has a higher cost, and relatively low market demand.

The 2025 World Environment Expo was grandly held at Shanghai National Exhibition and Conve......

Co-organised by authoritative organisations and Shanghai Horui Exhibition and certified by UFI, the exhibition with over 4,000 companies and a 260,000-square-metre area is a world environmental expo platform for energy conservation, emission reduction and low-carbon environmental protection, aiming to offer systematic green solutions. It will set up two theme sections to show pollution prevention and control, environmental monitoring and key green manufacturing transformation technologies. Adhering to the concept of green and intelligent buildings, it will also demonstrate the building comfort system. Its products and solutions cover industry and construction and are used in various social fields. Thus, it has become an important hub for the green economy industrial chain and an accelerator for China to achieve dual carbon goals and establish a green, low-carbon and circular economy system.

UNCTAD: Global FDI to fall by 8% in 2024.

The UNCTAD's Global Investment Trends Monitor report shows FDI is at a crossroads. In 2024, global FDI grew 11% to about £1.4 trillion but fell 8% excluding flows through European transit economies. Advanced economies had stark contrasts: FDI in North America rose 13% due to US M&A growth and greenfield project surges, while Europe faced a sharp decline with many EU countries seeing drops. Among developing economies, FDI fell 2% for the second - consecutive year, threatening SDG progress. Asia's FDI inflows dropped 7%, with China down 29% and India up 13%. In Latin America and the Caribbean, FDI fell 9%, but some countries saw greenfield project growth. Africa stood out with an 84% surge. Looking ahead to 2025, FDI is expected to grow modestly, but risks like geopolitical tensions and economic instability remain challenges.