Are stainless steel tableware and pressure cookers coated? What is the composition of the coating?

The anti-rust function of 304 stainless steel has been very good. It doesn't need to be repainted, but what needs to be repainted can only show that its antirust function is not good.

304 is not so bright, but it has no surface treatment. If it is ground fine, it will be bright and smooth. Even after cold rolling and bright annealing, the surface of the flat product can be used as a mirror. It's just that doing so has no effect except looking good. It's just an increase in cost.

As for what material you said is good. Of course, the best one is 3 16L, but it won't be used by many people because the price of this one is not a fraction of 304.

304 is actually very good. Without logo, it may not be as good as 304. Because it's better than using 304, why doesn't he mark it? Nowadays, the competitive pressure is great, and many manufacturers charge 20 1 304(20 1 is much cheaper than 304).

Therefore, buying 304, the surface is floating clouds, and the essence is still the same. I wonder if there is any 304L on the market. If I insist, 304L is better than 304L. The carbon content of 304L is lower than 304.

I hope it helps you.