... , bag making, examing Style:The bag style can be three-side sealed,Stand-up w zipper bags, Sides gusset standing pouches ... fin or hidden fin), Quad-sealing bags. Valves: one-way degassing bean or ground valves (imported WIPF, BOSCH, Pbi or domestic). We ... 1kg, 3kg 125g, 150g, 250g, 500g, 1kg, 2kg, 3kg, 5kgetc…, side gusset coffee bag with valve