It is understood that the aluminum film square bag is 250g/ bag *40 bags/piece, and the retail price in the first-price zone is 0.8 yuan/bag, and the retail price in the second-price zone is 0.82 yuan/bag; Iodized salt 500g/ bag *40 bags/piece, the retail price in the monovalent zone 1.4 yuan/bag, and the retail price in the bivalent zone 1.42 yuan/bag; Iodized salt 1000g/ bag *25 bags/piece, with the retail price of 2.4 yuan/bag in the first price zone and 2.42 yuan/bag in the second price zone; Aluminum film self-supporting bag 250g/ bag *40 bags/piece, the retail price of one-price zone is 0.9 yuan/bag, and the retail price of two-price zone is 0.92 yuan/bag; Iodized salt 500g/ bag *40 bags/piece, the retail price in the monovalent zone 1.5 yuan/bag, and the retail price in the bivalent zone 1.52 yuan/bag; Paper-plastic square bag 250g/ bag *40 bags/piece, with the retail price of 0.8 yuan/bag in the first price zone and 0.82 yuan/bag in the second price zone; Iodized salt 500g/ bag *40 bags/piece, the retail price in monovalent area 1.5 yuan/bag, and the retail price in bivalent area 1.52 yuan/bag.