Towel rack high quality electric heating tube

Wipe the surface of the electric heating tube first, then turn on the AC 220V power supply, dry it in the air, and turn off the power after the surface turns red. After the electric heating tube is completely cooled, wipe it with a napkin. There should be no black oxide powder on the white paper. The description is a high-quality electric heating tube, which is a relatively simple method. Of course, if there is an instrument, it is also a test method. The stainless steel electric heating tube produced by the company is made of stainless steel as the sheath, with a magnesia rod as the inner core, as the filler of magnesia powder, and the nickel-chromium wire as the heating wire. More stable, reliable and durable.