... , φ170mm, φ210mm, φ190mm, φ226mm, φ320mm, φ430mm, φ480mmProduct Features:High-temperature ceramic electric rings, heating ring, high-grade injection molding machine, plastic ... long life and high reliability.Product classification according to the voltage:AC115V, AC220V, AC230V, AC240V, AC380V, AC440V, AC600VProducts classified by power ...