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
尾随 迷奸 国产AV| 一级特黄AAA裸片无码| AV操中文字幕| 久久久无码人妻精品系列| 超碰自拍av在线| 一级片黄色网址| 3p性视频在线观看| 国内一级片| 日韩无码久久| 亚洲v区| 日韩免费A片| 91社黄色电影| 韩无码A片| 亚洲极色| 一区二区三区高清| 波多野结衣第一页| 91视频 91网页| 国产A片大全| 亚洲色狼人| A级视频免费看| A片网在线免费看| 中国国产黄色Av片| 人人色微拍| A片性爱视频| 国产AV日韩| 日本色道视频网站| 超碰97在线看| av最新在线| 免费看黄色A级毛片| 视频区自偷自拍| 日韩动漫成人| 91黄色A片| 色一区二区3区| 国产免费一级A片| 美女A级毛片视频| av在线网址导航| 三级视频网站| 无码AV色色| 99全部精品| 日韩AV在线天堂| 毛片777777|