According to my understanding, my conclusion is that whether to choose SUS3 16 or 304 stainless steel should be decided according to the actual needs and usage scenarios. If you need to withstand high temperature, high pressure or corrosive environment, or if you need to manufacture demanding parts, then you can choose SUS3 16 stainless steel; If you only need to meet the general requirements and the cost is high, then 304 stainless steel is also a good choice.