The surface of mounting sample is not smooth. Grinding is to remove excess part of the sample with abrasive materials.
Grinding Consumables ,Grinding Paper Disc,Emery Paper Rough,Aluminum Oxide Abrasive Powder TROJAN (Suzhou) Technology Co., Ltd. , https://www.troolymaterial.com
A foreign website is working hard in this direction. They are developing a bluetooth door lock system called UniKey. The system includes the mobile phone application and the corresponding UniKey door lock. The mobile phone application converts the mobile phone Bluetooth signal into a unique signal and sends it to the door lock. The lock will be automatically unlocked. This process can also be used for locking.
In addition, if there are visitors who need to enter or leave the house, such as house decoration workers, part-time workers. Users can authorize the visitor’s mobile phone in the form of a text message, so that their mobile phone also becomes a temporary key. The user can set the time period of authorization, and can also cancel these authorizations at any time.
Finally, if the phone unfortunately falls into the wrong hands, the user can reset the lock directly. And in order to prevent the loss of mobile phones or no power, manufacturers still provide a Bluetooth-enabled key.
Currently, UniKey is nearing completion of its development. The retail price of the finished product is expected to be around US$149 to US$199, supporting devices including iOS, Android, and BlackBerry.
Bluetooth door lock system: "hiding" the key in the phone [Full text]
China Security Exhibition Network News Nowadays, the development of science and technology makes many people feel amazing. As for the keys that people must take when they leave the house, there are studies that assume that it is possible to carry the key “on the phone†without another key – another item that people must bring with them.
One-button flushing and cleaning, effective prevent the obstruction causing by grinding debris;
Faucet can be switched to automatic mode, less operations for manual grinding and polishing;
Large diameter drain hose, not easy to blocking and drainage quickly;
Retractable water hose for easy cleaning and remaining;
Optional glass operation panel, easy to clean and good at sealing;
Optional buttons operation panel, simple and practical for using.