... main professional manufacturer in China,we have the ISO9001-2000 and the ISO14001-2004.We have TUV test report . frozen ... storage bag has other important benefits as well. With airtight and waterproof performances, it keeps out bugs, dirt, moisture, mildew, ... it is also used to storage important files, family albums, Video Discs, and silver jewelry. MATERIAL: PA + PE & PET+PECommon thickness: 70 ...