电热圈，即为圈状电热器。有时也可以做成板状，即为电热板，只是外形不同而已，实质相同。一般来说，电热圈按照材质、制作工艺可分为两大类：不锈钢电热圈和铸造类电热圈。
不锈钢电热圈广泛应用于塑料机械、包装印刷、石油化工、电子设备等行业。
Stainless steel electric heating ring is widely used in plastic machinery, packaging and printing, petrochemical, electronic equipment and other industries.
产品用途：电热圈广泛应用于塑料机械、包装印刷、石油化工、电子设备等行业。
Products use: electric heating ring is widely used in plastic machinery, packaging and printing, petrochemical, electronic equipment and other industries.
耐高温陶瓷电热圈采用的不是一般云母挠线方式制作，而是采用陶瓷条穿丝方式，因此该产品的功率比普通的要高0.5 ~ 1.5倍。
High temperature ceramic electric circle is not generally used in Mica torsion line production, but used to wear silk, pottery, so the products than the general power to the 0.5 to 1.5 times.
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