Which inventory method is suitable for Haier refrigerator finished product warehouse?

Haier implements a "zero inventory" model. Haier's inventory mainly consists of parts and components from products. Haier implements a "zero inventory" model, using materials that are in constant motion to increase capital turnover. For similar companies’ raw material management models. Let each supplier put the supply in Haier's warehouse, and settle accounts with the supplier according to the amount used every month. Haier's account shows zero inventory.