Quality of brush for glass edging machine

We are a glass edging machine manufacturer in china. We use a lot of brush in our machine, but some brush are bad quality and will lose elasticity after dipping in the hot water. If this happen, the water shall leak from machine. We want to find some good quality machine. Some one can help? We shall appreciated.

I have read and I agree to glassonweb.com's Terms of Use, including Privacy Policy and Cookie Use.
On