According to the monitoring of the major steel markets in 30 provinces (autonomous regions and municipalities) of the country, the price of steel products continued to rise this week. The comprehensive average price of major steel products was 4,834 yuan per ton, which was an increase of 2.92% over the previous week. We expect that some areas in recent days have increased their energy-saving and emission reduction efforts and imposed restrictions on production and production suspension for some steel mills, leading to a reduction in the steel market supply in the short term. After entering September, the demand for the steel market has gradually increased. Coupled with the increase in prices of raw materials such as scrap, steel billets and coke, it is expected that the price of steel products will continue to increase in the later period. In addition, the monitoring results of the major agricultural product wholesale markets in the country showed that the vegetable wholesale price was stable and slightly lower this week, the wholesale price of meat rose slightly, and the wholesale price of eggs rose for the 16th consecutive week. According to the monitoring of the major agricultural product wholesale markets in the country, the price of food this week has remained basically stable. Among them, the average wholesale price of mixed wheat was 2,060 yuan per ton, up by 0.98% from last week; the average wholesale price of corn was 2,060 yuan per ton, down by 0.96% from last week; the price of edible oil rose steadily and the average wholesale price was 11.74 yuan. /kg, up 0.34% compared to last week. We expect that due to the overall balance of grain supply and demand in China, the country's adequate food stocks, and strong regulatory capacity, and soon after the new grain will be listed in succession, the domestic grain prices in the later period will be mainly stable. In addition, due to the proximity of the two sections, the consumption of meat, eggs and vegetables will increase, and the price of meat and eggs will increase slightly in the later period. Vegetable prices will stop falling and stabilize.
Focusing Lenses. The focusing lens is the last optic in the laser path, before it hits the workpiece. Its main role is to focus the laser beam to a specific focal length (FL) - depending on the application. Therefore, the focal length - that is dictated by the radiuses and curvatures of the lens - is its most important feature.Focusing the beam ,produces a focus of high energy density that processes the work piece Product characteristics: • High design accuracy, high precision machining, all systems have reached the diffraction limit
•The focus is deep, good consistency across the focal depth range Plane-convex focusing lens is applied to CO2 laser. One side is flat and the other side is convex. The substrate is laser-grade CVD ZnSe and coated with the double-sided anti-reflective film. The convex surface should face the perpendicular incident light beam and the plane should face the workpiece. Meniscus focusing lens is concave and convex focusing lens. The substrate is laser grade CVD ZnSe and coated with the double-sided anti-reflective film. Meniscus focusing lens can effectively reduce spherical aberration and produce smaller light spot than plane-convex focusing lens. The convex surface should face the perpendicular incident light beam and the concave surface should face the workpiece.
Focusing Lens,Led Focusing Lens,Optical Focus Lens,Focus Glass Lens Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com