... plastic woven bags,etc.*GK26-2A is single needle double thread chain stitch plastic bag closer which is improved ... the spare parts are Interchangeable with GK26-1A except double-thread part. GK26-1A GK26-2A GK26-1ASewing Speed:1250RPMNeedle:DNX1.25# ... type steel bandknife cutting machine;ZN90 button attaching machine,double insurance series outfit attaching machine,automatic outfit attaching ect, ...