你懂得福利导航_婷婷福利视频导航_超碰A级片_日韩一类毛片_爱av在线_A片影音

你懂得福利导航_婷婷福利视频导航_超碰A级片_日韩一类毛片_爱av在线_A片影音

你懂得福利导航_婷婷福利视频导航_超碰A级片_日韩一类毛片_爱av在线_A片影音

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.

你懂得福利导航_婷婷福利视频导航_超碰A级片_日韩一类毛片_爱av在线_A片影音
岛国AV在线一区| 91超碰在线中文字幕| 找av在线导航| 日韩无码成人电影天堂| 免费的三级av网站| 成人黄色网| 日韩A级片视频| 无码激情卡通 你| AV黄色AV| A区黄色一级电影| 高清成人A在线| A片久久久| 人妻性AV| 中文字幕免费一级A片| 成人动漫第二页| 色色婷婷丁香五月天| 亚欧日韩av| 美国中文字幕| 亚洲a片在线看| 偷拍AV污| av网在线看| 无码区av| 手机免费av网站| 亚洲AV导航总站| 97超碰人人人草| 成人一级AV电影网| 91看片无码| 亚洲天堂成人av| 成人人妻具乐| 国内黃色视频| 日本AA一级片| 91性爰视频| 91主播在线视频| 超碰资源亚洲免费| 台湾AV在线播放| 麻豆欧美性爱视频| 国产成人a亚洲精品| 无码bb| 亚洲A V -二三区| 波多野结衣一二三区| 一级a一级a爰免费免免|