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用途： 用于油扩散泵加热、高温塑机加热。
特点： 耐高温、使用寿命长、缺点太笨重。
Technology: cast iron plate heated it to good pre-heating of the necessary requirements of bending. Add to the mold, and cast from molten iron, then finished, to be the ideal product.
Use: the proliferation of pumps used for heating oil, high-temperature electric heating.
Features: high temperatures, long life, disadvantages too cumbersome.
