2025-12-24
When purchasing heating tubes, people often focus on material and power but overlook a key component — the punching sheet. Hidden at the terminal or fixed part of the heating tube, it may seem insignificant, but it is the "invisible hero" that determines the stability and safety of the heating tube. Today, we will popularize the manufacturing process, working principle and core functions of the punching sheet. Whether you are a buyer or a consumer, understanding this will help you better choose