Improper operation of the towel rack

When the powder is added, the exposure of the lead-out rod does not meet the requirements. If it is too short, the heating wire lead-out bar is stretched while adding powder while vibrating while adding powder. Doing so will cause the heating wire to be too thin or too dense locally or even short circuit between the heating wire coils. Improper operation of the shrinking process will also affect the uniformity of the heating wire distribution.