Hehe. Once went about repairing a rice cooker. Iirc, there were something like 2 different models of the thermal regulator, available from maaaany sellers. Woul

Hehe. Once went about repairing a rice cooker. Iirc, there were something like 2 different models of the thermal regulator, available from maaaany sellers. Wouldn't surprise me if virtually every rice cooker out there includes one of these few models thermal regulator. Probably true for many parts. 1 or 2 highly specialized manufacturers that are absolute king in their market niche. Vendor picks a bunch of such parts, slaps custom housing around it (made by yet another specialist), and moves the boxes. Branding, logistics & perhaps assembly (if not outsourced to 3rd party too), rather than manufacturing most of an appliance themselves.