Factory overview on 2020.12.22!

Buy auto duct line, spiral tubeformer, duct machines,buy from Preda Machine!

www.predamachine.com   www.predacnc.com   www.autoductline.com

jason@predamachine.com

+86-18355321923   (WhatsApp)

Youtube video link of factory,

https://youtu.be/dPqL893se9g