1. Structural design innovation The vertical and horizontal directions are used, and the unique design of the working marble can effectively prevent various universal keys, technical methods and vibrations from opening. 2, work marble design innovation Work marbles up to 4 rows. It is twice the national standard, the B -class standard, and 75% of the marbles are designed for hidden marbles. Its concealed marbles are invisible, inaccessible, non-feeling, and silent, making the technology impossible to start. 3. Breakthrough innovation in key quantity The actual manufacturing key amount is up to 2 million or more, that is, 2*107 . Can achieve real sense of no open. 4, complete specifications, a wide range of applications. This technology can be applied from the mortise lock of Φ17 to various special deformation lock cylinders above Φ30 . This anti-theft lock has obtained national invention patents, utility model patents, and has been searched for international initiative. It has the highest national testing organizations - Ministry of Public Security, anti-technology open time of 270 minutes is not open. Currently the country is 54 times the maximum standard level B; Key amount up to 200 million or more, it is 33 times the level of B. It is a super B -class anti-theft lock. This series of locks can be widely used in various security doors, steel doors, various fingerprint locks, electronic lock facilities. Not limited by size specifications. This series of locks has been underwritten by Ping An Insurance Company of China. Where the lock is stolen due to technical opening, the insurance company will collect up to 10,000 yuan in accordance with the procedures.
Ball lenses Spherical ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres fit into smaller packages.
Sapphire and Ruby ball lenses are both made from Al203. Ruby or Ruby-Doped sapphire owes its red color to traces of chromium oxide (chromium content for ruby balls is typically >0.5%). While their physical and chemical properties are basically the same, their optical properties are somewhat different. Sapphire has superior optical transmission qualities. Ruby Balls are easier to see and therefore easier to handle for physical applications.
Ball Lens Half-Ball Lens
Specification of our ball lens: Sapphire Ball Lens,2 Mm Sapphire Ball Lens,Sapphire Half-Ball Lens,Sapphire Glass Ball Lens China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com
Qianjin brand super B -class anti-theft lock - revolutionary technological innovation 
*Material:BK7 or other optical glasses,optical crystal materials
*Diameter:1mm - 40mm
*Dimension Tolerance:+/-0.005mm
*Surface Quality:40-20
*Sphericity:0.005mm
*Coating:optional