国产男女av,99热精品国产

91啦丨九色丨蚪窝人妻,国产三级无码在线观看,欧美黑人XXXX高潮猛交,少妇人妻好深好紧精品无码

20 MW synchronous motor for West to East Gas Transmission
The leading 20000 kW 2-pole ultra-high speed variable frequency and speed regulating synchronous motor in China operates in Lushan station of Henan Province and Gaoling station of Shaanxi Province

    .

Tzw series high-speed explosion-proof variable frequency speed regulating synchronous motor is mainly used for the mechanical equipment such as the electric drive compressor unit for driving the natural gas transmission pipeline, the electric drive compressor unit for LNG liquefied natural gas, and the large air separation unit. It is a high-end technical product designed and developed by Shangdian company in recent years, and the product technology is leading in China.

This series of products are characterized by compact structure, safe and reliable operation, high efficiency, small vibration, low noise and convenient installation and maintenance. The new technology of AC exciter and brushless excitation system ensures that the whole unit can start smoothly and run smoothly at any speed. The matching explosion-proof pressure controller and positive pressure purging device ensure the safe operation of the motor in the flammable and explosive dangerous environment.

Contact Us
Shanghai Electric Machinery Co.,Ltd.
Address:555 Jiangchuan Road, Minhang District, Shanghai
Post code:200240
Tel: 021-64638221
Fax:021-64632422
e-mail:ludai@shanghai-electric.com
欧美性喷潮| 中文字幕久久久| 亚洲熟妇一区二区三区在线观看| 国产精品一区二区久久| 国产日韩一区二区三区在线观看| 懂色一区二区三区在线播放| 99久久精品免费看国产高清| 少妇黄色一级片| 夜夜嗨国产免费观看| 黄片一级免费| 不卡中文字幕| 色呦呦日韩| 色欧美片视频在线观看| 一区二区三区美女视频| 精品无人区码一码二码三码区别在| 综合激情综合| 一本色道久久综合狠狠躁篇| 国产精品无码久久综合网| 97人人超碰| 国产按摩推油一区二区三区在线| 护士奶头又白又大又好摸视频| 国产午夜精品爆乳美女蜜臂aV| 国产成视频在线观看| 中文无码三区久久免费| 无码熟妇αⅴ人妻又粗又大| 草草影院限制| 亚洲熟女少妇一区二区三区| 人妻人人澡人人添人人爽| 三级AAA午夜电影直播| 五月天婷婷缴情五月免费观看| 国产精品久久久久久免费一级| 综合久久久久| 影音先锋女人aV鲁色资源网站| 免费黄色在线观看| 久久AV无码专区亚洲AV桃花岛| 少妇又色又紧又爽又刺激视频| 久久精品亚洲国产av| 丁香一区二区| 国产第21页| 婷婷伊人| 少妇被躁爽到高潮|