A debate over the height of the right to speak of Everest has continued for nearly 30 years without the knowledge of the Chinese. In 1975, the Chinese government announced to the world that Mount Everest was 8,848 meters above sea level and proud of the country. As everyone knows, this val.......
　　- Model NO.: PS-LC-007 .......
In corrugated industry, the work and operation of corrugating rollers are often overlooked. In order to meet the high quality requirements for corrugated products today, the working conditions of corrugating rollers have also received increasing attention. The.......
The modern printing technology began with John Gutenberg's design of the first complete printing system. It has been more than 500 years old. During this period, three changes can be called epoch-making technological advances.
The first change began.......
China's current consumption of PET plastic beverage bottles is very high. The recycling of used PET beverage bottles can not only reduce environmental pollution but also turn waste into treasure. However, only a small part is used, and the rest are discarde.......
[ Chinese wardrobe network ] In the general family, the wardrobe takes care of the double function of storage and storage of the wardrobe, and even prevents large items such as quilts. Therefore, when purchasing.......