... ,500g,1kg,2kg coffee plastic bag with valve ,made from PET/Alu/PE,certificated by QS Item:coffee plastic bags with valveFeatures:1 ... ))Material : PET/Alu/PE, 2)Thickness:90-160micron 3)Syle: Side gusset bag 4)Degassing ... as 100g,150g,200g,250g,500g,1000g,2000g,3000g bags and bags roll film. 2)We are professional coffee bags manufacturer ...