浴室人妻的情欲HD三级,亚洲AV无码潮喷在线观看,含羞草国产亚洲精品岁国产精品无码一区二区三区,精品视频一区二区三区在线观看,国产精品久久久久久久AV大片欧美日韩国产高清精卡成人性欧美,国产乱码精品一区二区三区麻豆,久在线中文字幕亚洲日韩,av无码精品一区二区三区三级

SF-2 Boundary lubrication bushing

SF-2 Boundary lubrication bushing

This is a steel based, sintered bronze spherical powder as interlayer and overlaid by a layer of POM, the surface of which is provided with oil indentations.
The thickness of the plastics layer is about 0.5mm.

A trace of oil or grease may be utilized and may work successfully under heavy load with oscillating motion and those which start and stop frequently under load.

Moreover, it is of low cost and long life. This kind of material is now widely used as bushes in chassis of automobiles, forging presses, metallurgical and mining machines, civil engineering machines, hydroelectric industrial machines and steel strip cold rolling machines.

It is a lead-free product.

Product inquiry

  • captcha
国产无夜亚洲精品区| 台湾swag在线免费观看| 欧美一级α片中文字幕| 日本一区二区不卡在线| 潮喷大喷水系列无码视频| 亚洲精品无码成人片久久不卡| 欧美日韩激情无码专区| 欧美日韩一区二区综合| 欧美乱妇狂野欧美在线视频| 久久无码精品一区二区三区| 精品国产AⅤ无码一区二区蜜桃| 重口SM一区二区三区视频| 激情国产原创在线观看| 97精品依人久久久大香线蕉97| 精品国精品无码自拍自在线| 日本在线视频一区二区三区| 亚洲无人区乱码中文字幕| 亚洲无人区码一码二码三码四码| 亚洲AV中文无码乱人伦在线咪咕| 天天爱天天做天天添天天欢| 东北丰满少妇多毛大隂户| 免费无码鲁丝片一区二区| 国产成人毛片亚洲精品不卡| 国产成人亚洲精品| 亚洲精品ty久久久久久久久久| 好骚导航,精品久久久久久中文| 久久婷婷五月综合色| 久久精品成人欧美大片| 一级毛片免费一级直接观看互動交流| 久久精品一本到99热免费| 久久久婷婷成人综合激情| 久久久久人妻一区视色| 亚洲中文无码h在线观看| 国产日韩欧美不卡在线观看| 亚洲乱码日产一| 欧美人妻少妇精品视频| 亚洲av无码乱码精品国产| 国产欧美日韩在线一区二区不卡| 精品欧美一区二区在线观看| 国产黄片在线视频| 国产成人精品视频a片西瓜视频|