久久精品久久久久观看99水蜜桃 ,天天摸夜夜添狠狠添婷婷,国产婷婷一区二区三区

Member of National Technical Committee for Standardization of Rock Drilling Machinery and Pneumatic Tools

Drafting Committee for National Rock Drilling Machinery and Pneumatic Tools Standardization

The ISO9001 quality assurance system qualified TUV, CE, MA certified manufacturer

Y24 Hand-held rack drill

1: dry drilling. Suitable for medium or hard rock, drilling downward or inclined bubble hole.

2: It can also be used for secondary crushing operations.

久久国产精品波多野结衣AV,天堂に駆ける向天堂奔去歌词,四虎影视永久免费观看,av免费网站在线观看