U.S., Europe and Japan invite China’s rare earth and other export restrictions to invite the WTO to set up an expert group

The United States, the European Union and Japan submitted an expert group to the World Trade Organization Dispute Settlement Body on the 27th to investigate the export restrictions on raw materials such as rare earths in China. The US, Europe and Japan resorted to the WTO Dispute Settlement Body on March 13th, stating that China’s export restrictions on rare earths , tungsten and molybdenum violate WTO rules and China’s accession to the WTO protocol, including export quotas, export licenses and exports. Limiting measures, requesting consultations from China. The parties concerned held formal consultations in April but failed to reach an agreement on relevant issues. According to the relevant rules of the WTO dispute settlement mechanism, the parties to the dispute need to consult within 60 days. If the consultation fails, the requesting party may request an expert group to be investigated under the WTO dispute settlement mechanism. According to the WTO website, the US, Europe and Japan asked the Dispute Settlement Body to hold a special meeting on July 10 to discuss their request to form an expert group. The White Paper issued by the State Council Information Office on June 20th, "China's Rare Earth Status and Policy" pointed out that China is responsible for more than 90% of the world's market supply with 23% of rare earth resources. Shen Danyang, spokesman of the Ministry of Commerce of China, said on the 26th: "China's management of rare earth mining, production and export is based entirely on the protection of resources, the environment and the health of the people. In the future, China will continue to consider domestic resources and production and consumption as well as On the basis of the international market situation, the annual total export quota of rare earths is reasonably determined."

Irregular Window

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.
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.

Specification of our optical windows as follow:
*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%

Round Optical Window,Optical Infrared Window,Optical Square Window,Irregular Window,Optical Flat Window

China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com