女人阴性道图片真人18

收藏本站 提供:電熱管價格和電熱管規格型號大全,還提供電熱管接線、選型的問題,特耐佳電加熱器高端電熱供應商。

5.9mm加熱管

今日出廠產品展示及部分報價

5.9mm加熱管

干燒的電加熱管

干燒的電加熱管

其特征在于包括表面用于書寫的面板及用于支撐的背板,其特征在于所述面板的背面設有能將熱量傳導到面板上以使面板向空氣導熱的發熱層,并且,前述的發熱層與前述的背板之間設有隔熱層。與現有技術相比,本發明的優點在于:通過在面板后面增加發熱層,發熱層能將熱量傳導到面板上以使面板向空氣導熱,面板除了書寫功能還作為一個導熱板,將黑板的書寫功能和取暖器的取暖功能很好地結合到了一起,一物多用、5.9mm加熱管更加經濟、不占空間,可以給學員營造一個溫暖舒適的教學環境。
Which is characterized by comprising the surface used for writing the panel and the supporting plate is used, which is characterized in that the back surface of the panel is provided with the heat conduction to the panel to enable the panel to the heating layer, thermal conductivity and thermal insulation layer is arranged between the heating layer, and the back of the. Compared with the prior art, the invention has the advantages that: by increasing the heating layer in behind the panel, the heating layer to heat conduction to the panel to enable the panel to air heat conduction, panel in addition to writing function as a heat conducting plate, the blackboard writing function and heater heating function well together, a more complex, more economical, does not occupy a space, can give students to create a warm and comfortable teaching environment.

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女人阴性道图片真人18