30 days Generally, it takes 60 to 120 days to manufacture a large mold, 30 to 45 days to manufacture a medium-sized plastic mold, and 30 days to manufacture a small plastic mold. According to the size of plastic parts, it takes 30 days for children's toys, slippers and other plastic parts, 30 to 45 days for some household appliances and more than 60 days for others. Slippers are a kind of shoes, the heels are completely empty, only the toes are in front, mostly flat-bottomed, and the materials are often quite soft leather, plastic, cloth and so on.