日本极品少妇videossexhd-熟女无套内射线观56-欧美丰满老熟妇乱叫-国产亚洲精品一区二区在线观看-久久精品人人爽人人爽

Maintenance of Support

In order to make the friction stay in the best working condition or longer working life, we need to maintain it at terms:

Cleanning:

The surface of friction stay should be cleared often, but not use the strongly corrosive solvent.

Fixing the bolt:

Please use the relative tool to fix the loosed screw.

Lubrication:

All moving and fricting parts of the friction stay , should use lubricationg oil or other lubricant , only the place of the sliding plate and track is not included , because of their own-lubrication.

Adjust the postion

If the window could not use conviniently , or the sealing property is not good and so on , please kindly consult to our engineers before and taking the related steps.

主站蜘蛛池模板: 久久久这里只有精品10| 亚洲无码在线播放| 精品无码成人片一区二区| 大肉大捧一进一出好爽| 国产六月婷婷爱在线观看| 亚洲精品久久久久久一区| 最新中文字幕av无码不卡| 狠狠五月深爱婷婷网| 亚洲午夜精品久久久久久人妖| 欧美三级在线| 免费人成在线观看网站| 无码少妇一区二区三区浪潮av| 久久亚洲色www成人图片| 亚洲色婷婷久久精品av蜜桃| 国产精品久久国产精麻豆99网站| 五月丁香六月综合av| 久久精品国产99久久美女| 国产精品免费视频网站| 日本人妻人人人澡人人爽 | 国产精品久久久久蜜芽| 久久国产成人免费网站| 青楼妓女禁脔道具调教sm| 国产精品亚洲lv粉色| 国产成人午夜精华液| 精品国产一区二区三区av 性色| 狠狠亚洲婷婷综合色香五月排名| 丰满诱人的人妻3| 国产精品调教视频一区| 亚洲中文有码字幕青青| 久久亚洲精品人成综合网| 人妻少妇精品视中文字幕国语| 亚洲高清有码中文字| 中文国产成人精品久久app| 亚洲无线观看国产精品| 亚洲制服丝中文字幕| 久久久99精品免费观看| 久久亚洲精品无码av宋| 久久欧美一区二区三区性牲奴| 天堂…中文在线最新版在线| 亚洲熟妇中文字幕曰产无码| 亚洲 欧美 动漫 少妇 自拍|