Since the second half of 2008, due to the impact of the international financial crisis, China's and even the world's economic growth rate has slowed significantly.
In 2008, the output of China's cemented carbide industry increased slightly, and the economic benefits declined slightly. Among them, the total output of 43 cemented carbide enterprises was 14,605.07 tons, an increase of 2.31% over the same period of last year. It is estimated that the national total output of cemented carbide is about 16,500 tons, which is flat year-on-year; the export of cemented carbide is 3924.8 tons, up 12.58% year-on-year; The output of the products was 3,227.46 tons, a year-on-year increase of 59.79%; the industrial output value (current price), industrial sales value (current price), total operating income, realized profits and profits and taxes decreased by 5.16%, 4.98%, 3.15% and 12.33 respectively. % and 1.52%, the output value of cemented carbide tools and industrial added value increased by 3.06% and 0.74% respectively.
Material:Optical glass N-BK7 , H-K9L, UV Fused Silica, Sapphire, and infrared crystal materials.
Diameter:20-350mm
Diameter Tolerance:+/-0.1mm
Thickness:>2mm
Thickness Tolerance±0.2~0.1mm
Center Deviation:3-5'
Surface quality:80/50 60/40
Coating: Antireflection Coating inside
Chamfers:0.2 x 45° typical
In 2008, the output of China's cemented carbide industry increased slightly, and the economic benefits declined slightly. Among them, the total output of 43 cemented carbide enterprises was 14,605.07 tons, an increase of 2.31% over the same period of last year. It is estimated that the national total output of cemented carbide is about 16,500 tons, which is flat year-on-year; the export of cemented carbide is 3924.8 tons, up 12.58% year-on-year; The output of the products was 3,227.46 tons, a year-on-year increase of 59.79%; the industrial output value (current price), industrial sales value (current price), total operating income, realized profits and profits and taxes decreased by 5.16%, 4.98%, 3.15% and 12.33 respectively. % and 1.52%, the output value of cemented carbide tools and industrial added value increased by 3.06% and 0.74% respectively.
We are manufacturing high transmission and durability domes. BK7 or HK9L Glass domes are often used in meteorology applications. Fused silica domes are commonly used in underwater applications at extreme environments. Other application for our dome include meteorology applications, pyranometers, defence applications and as high pressure view ports in underwater cameras and submersibles.
Material:Optical glass N-BK7 , H-K9L, UV Fused Silica, Sapphire, and infrared crystal materials.
Diameter:20-350mm
Diameter Tolerance:+/-0.1mm
Thickness:>2mm
Thickness Tolerance±0.2~0.1mm
Center Deviation:3-5'
Surface quality:80/50 60/40
Coating: Antireflection Coating inside
Chamfers:0.2 x 45° typical
Hemisphere Dome Lens,Hemispheric Glass Domes Lens,Optical Glass Hemisphere Domes Lens,120 Mm Diameter Glass Dome Lens
China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com