Do you want to add ceramic lining inside your smoker.
Most ceramic smokers are indeed made in China.
But the price of ceramic smoker is too high.
Do you want to add ceramic lining in your USD, or Weber kettle, or an offset, or even an vertical.
I can make ceramic blocks in arc shape. You can simply put them inside your smoker. If necesary, I can also supply fastening bolt/nuts made by casting iron.
My friend has a furnace for making tea cups. But most time the furnace is not in use.