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Aluminum has always been synonymous with light. As the project is increasingly exaggerated to maintain energy by reducing weight, the amount of aluminum used is destined to grow. Aluminum fasteners weigh 1/3 of the weight of their similar steel fasteners. The strength characteristic ......
CuW alloys are used where the combination of high heat resistance, high electrical and thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As ......
Since the beginning of this year, the domestic corn grid has continued to rise, while the wheat price has remained stable overall. The spread between the two has expanded. In order to reduce costs, feed companies have begun to actively modify the formula to increase the number of wheat replacement ......
On December 19, the “Verification†column reported on the large-scale cultivation of genetically modified crops in the United States and the large consumption of genetically modified foods. But on the Internet, there are always disputes over genetic modification. Why develop GM crops? ......
1. Stainless steel cookers can't be rubbed with hard scouring pad, steel ball or chemical agent. Use soft towel, soft scouring pad to wipe with water or polish with stainless steel brightener. 2, marble countertops can not be rubbed with toluene, otherwise it is difficult to remove white ......
The Ministry of Land and Resources of Hubei Province recently issued the “Circular on Strengthening the Management of Development and Utilization of High-Potassium Iron Ore†(hereinafter referred to as the “Noticeâ€), requesting the cities (states) such as Yichang, J ......
Abstract Bulgaria, Romania, and the Czech Republic have chosen to question shale gas, which is somewhat doubtful to the industry. This year, these countries decided to ban the hydraulic fracturing law for various reasons. In January, Bulgaria declared a stop for hydraulic fracturing;... Bulg ......
First, avoid using paint or carving bamboo chopsticks. Paints applied to chopsticks contain chemicals such as lead and benzene, which are harmful to health. The carved bamboo chopsticks look beautiful, but they are easy to hide dirt, breed bacteria, and are not easy to clean. Second, avoid us ......
The former copper consumer pulling engine – China, this year, due to the impact of weak exports and declining domestic demand, China’s copper consumption growth has experienced an overall decline. Whether China's copper consumption will continue to be the source of global ......
Chilled water is a circulating water that flows to the cooling process only after its temperature has dropped through the refrigerator, and is mainly used in systems requiring low-temperature cooling in central air conditioners and factories. The composition of the cooling system, the frozen water i ......