タイトルまたは説明

Product description: 
QG***0(SS) bags feed-in device
QG***0 bags feed-in device is used to feed the filled bags into the sewing machine and fold over the bag top. This model is used together with the GK series automatic bag closing sewing machines.
  QG***0 made by normal carbon steel with folding function
  QG***0SS made by stainless steel with folding function
  QG*****1 made by normal carbon steel without folding function
  QG***0SS*1 made by stainless steel without folding function
Then, what is the main difference between QG***0 and QG***0?
Firstly, the ***0 feed bags with belts while the ***0 feed bags with chains.
Secondly, the ***0 feed bags only to the presser before sewing while the ***0 feed bags until sewing completed.