... ".4, EU RoHS, RoHS No. "SZHJ059322".Product Features:High-temperature ceramic electric rings, heating ring, high-grade injection ... 150mm, φ170mm, φ210mm, φ190mm, φ226mm, φ320mm, φ430mm, φ480mmHigh-temperature ceramic electric rings, heating ring, is a company well-designed ... long-life, high temperature, high-reliability products. In the life of the product, stability, reliability, energy ...