Group 1 - The ice factory in Zhengzhou is experiencing high demand due to extreme temperatures, with some areas exceeding 40 degrees Celsius, leading to full-capacity production and significant sales [1][2] - Each ice block weighs approximately 200 pounds and sells for around 30 yuan, with daily shipments reaching two to three thousand blocks [1] - The factory employs a cold water refrigeration method that allows for the production of a 200-pound ice block within 48 hours [2] Group 2 - The factory has 15 cold storage units capable of holding 1,500 tons of goods, with half of the ice blocks already sold from one of the cold storage units [2] - Customized ice blocks, which include fruits, beverages, and beer, are in demand, particularly among fishing enthusiasts who require both standard and customized ice for their activities [1]