1)beef jerky bag with clear window 2)bag style:three ... N.W:40g Feature:1)beef jerky bag with clear window2)bag style:three side sealed bag3)material ... workers. In this factory, there are six workshops with the machines such as, the multilayer extruders, ... side sealing), pillow bag, heat cut, stand up with/without zipper, side gusset, back corner sealing, ... big surprise. beef jerky bag with clear window