The difference between spring models and non-spring models：

1.The connection part between the spring frame and the temple adopts functional spring hinges，Has±15°The adjustment range，It has strong plasticity。

2.The connection part between the non-spring frame and the temple uses a common hinge，It has a certain range of expansion，Most glasses on the market use ordinary hinges。

This linked product，可为客户提供最Has优势的价格，24Hourly express delivery service！

We are the source factory，Specializing in customizing all kinds of lenses,Production, matching and sales of spectacle frames，The factory covers an area of approximately3800Square meters，There are two production bases in Duqiao Town, Linhai and Haozhang County, Guizhou Province，We can accept customized domestic and foreign trade orders