How to clean the bell cup

HDA Electrostatic rotary bell spray gun parts maintenance, HDA rotary bell gun's bell cup cleaning. pls find the video follwing for how to clean the bell cup.

Hongda HDA has mature and perfect electrostatic spraying gun technology and perfect pre-sales and after-sales service system. It provides technical support on the online and offline ,  The company has a spray room for customers to provide a professional test site with professional electrostatic painting experiment, process data collection and other functions. At the same time, We has  professional sales team and Hhighly qualified R&D engineering ; HONGDA Provide strong guarantee and service.