黄片不卡在线观看-99精品国产免费-国产一区二区三区三级无码-国产美女裸体视频-久久有码一级黄色片-日韩一级精品视频在线观看-免费无码一级成年片-免费A级黄色小电影-欧美一级黄色性爱

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: 免费一级无码婬片A片AAA毛片| 日韩91黄色高清视频| 国产电影一区二区三区HD| 亚州的一级黄色的视频看看| 免费精品无码一级毛片牛牛影视| 三级片久久久久韩国| 长片资源一级黄色片| 精品午夜毛片热播视频| 日一韩美女一级片| 成人黄色一级网站免费版| 成人三级黄色录像片| 三级黄色视视频三A毛片| 不卡的一级黄色片子| 欧美久久久一级簧片| 国产精品电影一区二区在线播放| 亚洲国产无码在线观看视频| 亚洲黄片aaaaa级| 国产一级a毛一级a看免费视频一级| 有黄色A级视频吗| 三级片黄片无线免费观看| 操逼黄色录像一级| 国产黄片视频免费观看| 在线一级黄色录像| 亚洲黄色一级AA毛片| www一级黄色大片| 福利视频二区牛牛视频直播| 日韩三级片网了址| 高清无码一级黄片视频| 亚洲一级无码视频| 美州日韩欧美影院| 免费看的一级真人毛片视频| 特级黄片视频免费看看| 免费看一级无码A片在线视频| 97色超级碰碰免费公开视频| 日韩一级欧美一级国产片| 国产无码流出在线免费无码| 国产A级片色逼电影| 黄片一级免费一区| 欧美一级A免费区| 一级无码日韩精品| 欧美在线免费综合网|