The difference between the inner lead and the outer wiring of the single-head electric heating tube?

The difference between the inner lead and the outer wiring of the single-head electric heating tube?

Let's take a look at the picture of the inner lead of the single-head electric heating tube and the external wiring of the single-head electric heating tube:

1. Different lead structure

2. The production process is different

3. The scrap rate of inner leads is higher

4. The inner lead has higher temperature resistance

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