The world's first sun stove designer was Mushaw of France. In 1860 he was ordered by Napoleon III to study the use of parabolic mirrors to reflect solar energy concentrated on the suspended pot for use by French troops stationed in Africa. In 1878, Atams made many researches and improvements. Since then, there have been 10 factories in India. By 1889, there were many patents for solar cookers around the world, and there were various forms of solar cookers. Solar cookers have great practical value in the vast rural areas, especially in areas with lack of fuel. At present, the use of solar cookers in the world is quite extensive, and the technology is relatively mature. It can not only save coal, electricity, natural gas, but also is very clean and pollution-free. It is a solar energy utilization device that can be widely promoted.
Slip-On flanges or SO flanges are commonly lower in price than weld-neck flanges, and to this effect are a popular choice for our customers. It is welded both inside and out to provide suffcient strength and prevent leakage. Slip-On Pipe Flanges. As made obvious by their name, these pipe flanges slip over the pipe. They're manufactured with an inside diameter that is slightly bigger than the pipe's outside diameter. These attachments are connected to the pipe via fillet weld at the top and bottom of the flange.
Slip On Plate Flanges,Slip On Flange,Class 150 Flanges,Carbon Steel Slip On Flanges
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