Which teaching clip is the most popular in China among customers in 2021?

This blue large three-jaw clip is the most produced style in our factory in 2021.

Which teaching clip is the most popular in China among customers in 2021?-MasterLi,中國工廠,供應商,製造商

Which teaching clip is the most popular in China among customers in 2021?-MasterLi,中國工廠,供應商,製造商