Some products are naturally equipment + consumables, such as the e-cigarette rod is a device, and the cartridge is a consumable. If your product is a device, is it possible to add consumables for bundled sales? If your product is a consumable, is it possible to sell the device by the way? How to create a combination of equipment + consumables and let the new products drive the sales of the original main products is a direction that companies need to think about, and there have been a large number of successful cases in China.