Customized many unique high-temperature ceramic band heaters, 3000W ceramic electric rings. High-temperature ceramic electric rings, heating ring, is a company well-designed long- ... , φ150mm, φ170mm, φ210mm, φ190mm, φ226mm, φ320mm, φ430mm, φ480mmProduct Features:High-temperature ceramic electric rings, heating ring, high-grade injection molding machine, plastic ...