On January 14, 2014, at the special forum on the status and development of power batteries for the "China Electric Vehicles 100", Zhang Xiangmu, director of the Equipment Industry Department of the Ministry of Industry and Information Technology, pointed out how far new energy vehicles can go, ultimately depending on Power battery, "It can be said that whoever masters the key core technology of the power battery, whoever has the initiative to develop new energy vehicles."
30mm Dovetail Scope Rings are a specific type of dovetail mounting system designed to accommodate rifle scopes with a 30mm main tube diameter. These rings feature a dovetail design that slides into a corresponding dovetail-shaped groove on the firearm's receiver or rail system. The 30mm measurement refers to the internal diameter of the scope rings, which is the size of the scope tube they are designed to hold securely.
As with other dovetail scope rings, 30mm Dovetail Scope Rings offer certain advantages, such as:
Low profile: The dovetail design provides a streamlined and low-profile setup, which can be aesthetically pleasing and reduce the overall bulk of the firearm.
Secure fit: The interlocking design of the dovetail system ensures a stable and secure connection between the scope and the firearm, minimizing the chance of the scope shifting during use.
Easy installation and removal: Dovetail scope rings can be easily installed or removed, making it simple to adjust, maintain, or swap scopes between firearms.
However, it is essential to note that 30mm Dovetail Scope Rings are designed specifically for scopes with a 30mm main tube diameter, and they may not be compatible with scopes of other sizes. Additionally, dovetail mounting systems may not be as versatile as other systems like Picatinny or Weaver rails, which can offer more mounting options and are compatible with a wider range of accessories.
Optics Mounts, Rifle Scopes Accesspries Guangzhou Miaozhun Jie Trade Co.,Ltd. , https://www.miaozhunoptics.com
In order to promote the development of power batteries, Zhang Xiangmu pointed out that the work required in China is to promote technological progress. The production of power batteries in China is not the most. At present, it is necessary to develop and improve relatively mature lithium-ion batteries, and to strengthen the deployment of new battery systems. . At present, China's single battery has made great progress, but after the battery pack is made, the performance will be greatly reduced. Moreover, there is still a big gap between China and the international level in battery control, storage technology and system integration.
As China's lithium-ion power battery enterprises are generally small and scattered, and most of the production capacity is not up to standard, Zhang Xiangmu reiterated that he should adhere to the "standard conditions for automotive power battery industry", thereby strengthening the supervision of automotive power battery products, preventing low-level redundant construction and promoting power batteries. Technological progress and scale development of production enterprises.
2014 is regarded as the first year of the development of new energy vehicles. From the data point of view, the development of new energy vehicles has become a trend. Between 2009 and 2012, China produced more than 10,000 new energy vehicles and produced more than 20,000 vehicles in 2013. In 2014, it grew to more than 80,000 units, of which 27,000 were produced in December.
From October 28 to November 28, 2014, the Ministry of Industry and Information Technology publicly collected opinions on the “Regulations on the Standards of Automotive Power Battery Industryâ€. The specification clarifies the basic requirements of the power battery enterprise, production conditions, technical capability requirements, product requirements, quality assurance capability requirements, sales and after-sales service conditions. Among them, in the basic requirements of enterprises, the requirements of the standard conditions for the production capacity of the enterprise are worthy of attention. The annual production capacity of the system production enterprises is not less than 10,000 sets or 200 million watt-hours.