a preheating zone of a preheating glass pipe is arranged at the upper part of the material feeding mechanism;
在送料机构的上部安置一个预热玻璃管的预热区;
The preheating pan of constant temperature oil is connected by the oil conveying pipe with the vacuum electric frying pan, and the oil conveying pipe is provided with an oil feed valve;
恒温油预热锅与真空电炸锅通过输油管连接,输油管上有一个输油阀;
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