Paper Flat Bottom Pouch/ Box Pouch/ Block Bottom Pouch with Zipper is one kind of pet food Packaging Bag . The material of Food Packaging Bags/Pouches with Zipper we usually used is PET/PE, if you need the Paper Flat Bottom Pouch/ Box Pouch/ Block Bottom Pouch Packaging Bags/Pouchse with Zipper has a long quality guarantee period, we can provide the material of PET/AL/PE. We also can provide kraft paper bag for Food Packaging Bags/Pouches with Zipper. The Printing we can do within 10 colors. The bags' sizes and styles all can be customized. The bag style we can provide 3 side seal bag, stand up bag, Flat Bottom Bag, side gusset bags with side hide handle etc,. Paper Flat Bottom Pouch/ Box Pouch/ Block Bottom Pouch Paper Flat Bottom Pouch,Paper Box Pouch,Paper Block Bottom Pouch,Box Pouch With Slider MST Packaging Co., Ltd. , https://www.mstpack.com
This International Standard specifies the equipment, reagents and methods used to evaluate the copper accelerated acetate spray test for the quality of metal coatings prepared in accordance with the requirements of the coatings or product specifications. This test is designed to evaluate the quality of decorative Cu + Ni + Cr or Ni + Cr coatings, and is also applicable to the anodized aluminum layer. Unless otherwise specified, this test is only applicable to the above coating. This test is unreliable for comparing Cu + Ni + Cr and Ni + Cr coatings, because the acceleration of copper corrosion products of Cu + Ni + Cr coating is masked by the effect of copper ions present in the test solution. This International Standard does not specify the type of test piece, the exposure period of a specific product, or the interpretation of the results. These details are provided by the appropriate overlay or product specifications.