人妻无码中文字幕免费视频蜜桃,国产在线精品一区二区中文,天天干天天日夜夜操,几个男人扒开腿揉捏花蒂

Characteristics:

Innovation:

. zjpd and zjcd, 6 models in each series.

Using sealed motor, the static seal can replace the dynamic seal. There is no need for oil seal, mechanical seal, motor connecting seat, coupling and oil cup.

Fluorine rubber and sealing sleeve are used to seal the motor rotor.

Axial flow fan is used for heat dissipation, and variable frequency starting can be realized.

Advantages:

The vacuum is not reliable. It is suitable for high vacuum pumping system.

No oil seal structure, no lubrication, no lubricant pollution, suitable for vacuum system requiring clean working environment.

. sealing sleeve isolation, zero leakage, suitable for the vacuum system of gas with pollution or toxicity.

It can be used for soft start operation and even increase pumping speed. It can effectively shorten the pre pumping time, and is suitable for the vacuum system with the pumping time racing against the second.

 

Product details

Scan QR code and add wechat

主站蜘蛛池模板: 金堂县| 工布江达县| 濉溪县| 无极县| 托克托县| 南部县| 鄂州市| 双鸭山市| 宜州市| 南部县| 腾冲县| 定远县| 陵川县| 西丰县| 邮箱| 渭南市| 景洪市| 衡阳县| 姜堰市| 嘉黎县| 调兵山市| 尼木县| 灌云县| 山阳县| 松江区| 西平县| 莆田市| 阳新县| 德格县| 日喀则市| 南汇区| 福建省| 枝江市| 兰西县| 阳山县| 容城县| 邵武市| 汉寿县| 长寿区| 巴里| 遂宁市|