Yuema lock is a brand of Guangdong Dart Chen Anti-theft Equipment Co., Ltd., which has won the honors of "China Famous Trademark", "National High-tech Enterprise" and "Guangdong Famous Brand Product" by virtue of the patent of the idling lock cylinder. With the leading "360° idling anti-pry lock cylinder" invention patent technology and stable quality, Yuema lock has been recommended by public security organs all over the country.
 
Yuema lock cylinder is a national invention patent product, using 360 degree idling technology design to replace the shrapnel of the bullet in the traditional lock, changing the traditional method of locking the bullet separately, avoiding dislocation and liquid blockage. It has passed the inspection of the authoritative department of the Ministry of Public Security of the People's Republic of China, and cannot be technically opened within 270 minutes, reaching the super B safety standard. In the national standard of "GAT 73-2015 Mechanical Anti-theft Lock" promulgated in 2015, the security level of the lock cylinder was increased to Class C, and the lock cylinder of Yuema Lock became one of the first lock cylinders to be classified as Class C. Yuema provides a 1-year non-man-made damage warranty to replace repairs. Similar to the Golden Point Atom, Yuema's price range is also relatively wide, ranging from 59 yuan to 199 yuan.