It can be equipped with a scrolling display that displays 300-500 words of display content. It can also be equipped with intelligent infrared probe anti-collision device, which can automatically return to work when people or foreign objects are 20-30CM, thus ensuring the safety of vehicles and pedestrians.It can automatically open and close when automatic clutch is cut off. Manually open and close when manual clutch is cut off. The control system has control panel, push button switch, and other requirements. Equipped with wireless remote control.The door body is made of high-quality stainless steel and aluminum alloy profiles, and is hinged by the parallelogram principle. The drive is driven by special motor, worm and worm gear deceleration, and has automatic clutch or manual clutch. Factory Sliding Retractable Gate,Aluminum Alloy School Sliding Gate,Automatic Electric Single Double Gate,Store Retractable Gate Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.spiralfastdoor.com
A group of grinding wheel patents in Rizhao City broke through European technical blockade
Recently, Rizhao City Donggang District Science and Technology Bureau accepted a group of patent award applications, which is a group of patented technologies that can break through the European technology blockade.
This group of patents is the three technologies for the production of special grinding wheels for crystal diamond cutting. This technology was first created in the 1950s by Daniel Swarovski, the famous crystal processor of Austria and the founder of the world's first brand. This innovation has made Bohemia's crystal price rise and is famous, Swarovski. The brand thus became the world's crown of crystal and crystal diamond products, and also led to the Czech Republic on the other side of the Rhine. At present, this type of grinding wheel has been produced in Rizhao Street in Donggang District. This grinding wheel has caused a revolution in China's rhinestone grinding and will have a huge impact on the development of China's rhinestone and jewelry industry.