side gusset coffee bag 1)side sealed coffee bag 2)w side gusset 3)material:mattOPP/AL/PE 4)good barrier side gusset coffee bag 1. PET / VMPET / PE,PET / AL / PE 2.competitive price 3.advanced technique and high quality.Available for 100g,150g,200g,500g,1kg,2kg coffee bag roast coffee bean bag