... one side;PET/PE and NY/PE are for transparant bags. freezing bag/fast food bag/heat seal food bag ... :all the year roundour factory main products we produce1) Food bags for coffee or coffee beans, spices,sauces, meat, frozen ... the clear window as well.4. We can do food bags at any size according toyour demand, such as 70g, ... size, style and printed design.QingDao ChuangQi Packing Co.,Ltd beautiful PVC bags