German FEV exhibited an engine that uses roller bearings as the main bearing. Roller bearings have been widely used in two-wheeler engines for a period of time due to their low frictional losses. However, since the bearings are designed in an integrated manner, the crankshaft must
Experts say chemical steel industry will become a new focus of trade friction Font:ã€Big Middle Small】 -------------------------------------------------- ------------------------------ Author: Wang Hui China Chemical Industry News 2005-6-24 9:24:20 On the 19th of June, Wang Xinkui,
With the reform of the heating system, household heat metering and sub-room temperature control has begun to enter the implementation stage, the installation of temperature control valve on the radiator has been very common, with the temperature control valve sub-room temperature control, both to th
An archaeological study by the Anhui Provincial Institute of Cultural Relics and Archaeology shows that, 5,300 years ago, the ancestors of the Lingjiatan culture in Anhui Province had invented and used sophisticated jade machinery, which was three thousand years earlier than the bi
The 6th Beijing International Printing Technology Exhibition, which has been held for four years, is one of the six largest printing exhibitions in the world recognized by China and the printing industry. At the 6th Beijing International Printing Technology Exhibition (ChinaPrint20
"If we say that the successful development of China's first CNC spiral bevel gear grinding machine in previous years broke the foreign monopoly on China's technology in this field, it is a major breakthrough for China's machine tool industry. Well, today we are going to quickly dev
At the beginning of this year, the price of cold-rolled oriented silicon steel sheets for transformer production through the main channel has increased from 12,000 to 13,000 yuan/ton at the beginning of 2004 to 32,000 to 33,000 yuan/ton. The phenomenon of "no price and no mark