WRY Series Thermal Oil Pump is made from PTFE.So it has good applicability and guarantees the tightness at high temperature.是什么意思_WRY Series Thermal Oil Pump is made from PTFE.So it has good applicability and guarantees the tightness at high temperature.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句