Rishikesh produces speciallised knitting machine for packaging industry this wk 500 machine produces seamless /circular/sock mesh for onion packing .the hdpe yarn and nylon mono filament is used for knitting on wk 500 machine you can produce 12 inch sock mesh then this sock mesh is heat sealed and thus forms bag ,many parties use overlocking machine to produce bags. this is a cheaper solution for onion and potato bags . sizes available 300mm ,400 mm and 500 mm .