How many numbers can a 3D hard gold ring expand?

It can be extended from the 8th to the 23rd.

Before the advent of the ring expander, it was a time-consuming and laborious thing for craftsmen to enlarge the ring, which took nearly 20 minutes to complete after many processes. Waiting too long is easy to cause customers' dissatisfaction. .

Nowadays, with the help of the ring expander, ordinary shop assistants can also realize the ring expansion and reorganization from No.8 to No.23 (K gold, platinum, 3D hard gold, diamond ring and silver ornaments) in less than two minutes.