Medieval alchemy soils have tried to make crude metal into gold, and today the scientists at the US Naval Research Laboratory are better able to turn waste into diamond. In theory, when the organic solid passes through high temperature and high pressure, it usually forms a glittering crystal. In fact, this "treasure" can now be made from carbon-containing waste gas. There is a wastewater treatment plant near the US Naval Research Laboratory that produces 1.3 million cubic feet of methane per day. The lab's chemist James Butler placed the treated methane on a tungsten wire with a temperature of 4000 degrees Fahrenheit. After a while, a shiny synthetic diamond film appeared. Due to the extremely high temperature, the carbon atoms in the methane are separated and then combined layer by layer to become crystals. Although this diamond is not a few thousandths of an inch, the hardness has reached the standard. It is very satisfactory for the manufacture of wear-resistant machines, scratch-resistant lenses and state-of-the-art computer components.
Roller Shutter Door
Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.
Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.
Opening methods: Handing driving mode
Rope driving mode
Remote control driving mode
Electric switch driving mode
Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door
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