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。

無泄漏電流式加熱管

今日出廠產品展示及部分報價

本實用新型是涉及

高溫電熱管

結構的改進。本實用新型包括殼體、電阻絲,電阻絲外的導管同法蘭盤相連,殼體內充滿鎂砂,其結構要點是殼體外依次設置有澆注金屬層、石英絕緣層、澆注金屬層。本實用新型具有安全性好、結構簡單等特點
The utility model relates to improvement of no leakage current heating rod structure. The utility model comprises a shell, a resistance wire, resistance wire and catheter is connected with the flange, shell filled with magnesite, which is characterized in that the shell are provided with casting metal layer, insulating layer, casting metal layer of quartz. The utility model has the characteristics of high safety, simple structure and so

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女人阴性道图片真人18