On the 17th, the Harbin Municipal Administration for Industry and Commerce issued an emergency notice on severely cracking down the distribution of counterfeit safety helmets, safety belts, and safety nets, and comprehensively cleared counterfeit safety helmets, safety belts, and safety nets. In order to protect the life safety of construction workers, the Consumer Protection Division of the Harbin Bureau of Industry and Commerce requires that: Where there is no business license or no formal purchase invoices, no product inspection report will be distributed helmets, seat belts, safety nets; where there is a business license, there are regular purchase invoices , There is a product inspection report but the distribution of counterfeit helmets, safety belts, safety nets; where the initial appearance of the product, the price is initially determined to be suspected of counterfeit helmets, safety belts, safety nets, and immediately stop selling. The distribution department should accurately register the name, origin, quantity, sales volume, and sales destination. According to the relevant person in charge of the Harbin Municipal Administration of Industry and Commerce, the operators must, according to the requirements, send the problem helmets, seat belts, and safety nets to the designated locations of the industrial and commercial administrations of the area before 16:00 on May 20. Enterprises and individuals that do not report, continue to sell, transfer or hide overdue, upon verification, shall be confiscated of illegal proceeds and products in accordance with the “Special Provisions of the State Council on Strengthening the Supervision and Administration of the Safety of Food Products, etc.†The following fines shall be imposed; if serious consequences are caused, the original license issuance department shall revoke the license photograph; if it constitutes the crime of illegal business operation or the crime of producing and selling shoddy and inferior commodities, criminal responsibility shall be investigated according to law. (Reporter Lu Shaoping)
Windows are optical glass with ground and polished faces that are relatively parallel.They are used to isolate two physical environments while allowing light to pass.Windows made of BK7 material have high transmission in the visible spectral region, do not scratch easily, do not degrade under normal operating environment and hence do not need any special precaution or treatment. Anti-Reflective Coating will provide higher transmission.
Specification of our optical windows as follow: Round Optical Window,Optical Infrared Window,Optical Square Window,Irregular Window,Optical Flat Window China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com
When selecting windows, you should consider the following: material,transmission,scattering,wave front distortion,parallelism and resistance to certain environment.
China Star Optics offers all types of windows made from different materials.Special size and materials are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on Optical Windows.
*Material: BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%
Harbin Qingyi "deadly" safety helmet seat belt