About us

Sunhope is a high-tech enterprise specializing in the R&D,Production and sales of Square- bottom paper bag machine products through cooperation with European companies.

31 years ago, our team designed and manufactured a fully automatic envelope machine. At present, our envelope machinery series products have high popularity and market share. Until today, the envelope machinery and equipment we manufactured 25 years ago are still in normal operation.


To be a global leader in the paper bag machine industry,World class integrated solution provider of high-end paper bag machine!


To provide the Paper bag machine with excellent performance for global customers!!