We've spent nearly one year to develop a new product, the Chemical bags.The bags can be used for printing ink, battery powder, PCB boar ink etc. we can make three-side sealed bag, spout pouch, zip-lock bag, or even roll films, etc. The specifications and printings are customized. But the material structure is PET/AL/NY/PE. The material structure may looks easy, but the production process is very different.