女人脱了内裤高潮喷水30分钟,老熟妇仑乱一区二区视頻,欧美视频毛片在线播放,欧美老熟妇又粗又大

挖掘機快速連接器也叫快換接頭，快速連接頭，快換，能在挖掘機上迅速安裝，切換各種屬具（挖斗、松土器、破碎器、液壓剪、夯實器等）能擴大挖掘機使用范圍，并能節(jié)省時間，提高工效。

挖掘機快速連接器屬于結(jié)構(gòu)件類產(chǎn)品，由主體支架、活動卡塊、液壓油缸、銷軸等零部件組成。

1. 使用高強度的材料，適用于3-80噸未的各種機型

2. 使用液控單向閥的安全裝置，保證安全。

3. 挖掘機配置件無需安裝，也不用拆卸銷軸就能更換，因此安裝迅速，能極大提高工作效率。

4. 破碎錘與挖斗之間無需人工砸銷軸，輕輕扳動開關(guān)10秒就可以完成屬具切換，省時省力，效率極高。

Excavator quick change joint

The quick connector of excavator is also known as quick change joint, quick connection head, quick change, can quickly install on excavator, switch all kinds of accessories (excavator, looser, shatter, hydraulic shear, tamper, etc.) can expand the scope of use of excavator. And can save time, improve efficiency.

Excavator fast connector belongs to structural products, which consists of main support, movable chuck, hydraulic cylinder, pin shaft and other components.

Use of high-strength materials for all types of 3-ton 80-ton models

The use of liquid-controlled one-way valve safety device, to ensure safety.

Excavator configuration does not need to be installed, nor can it be replaced without removing pin shafts, so it can be installed quickly and can greatly improve work efficiency.

There is no need to manually smash the shaft between the hammer and the excavator. The switch can be switched by gently wrenching the switch for 10 seconds, which saves time and effort, and has a very high efficiency.