俺也来俺也去俺也射,久久精品国产只有精品2020,亚洲人和日本人jzz视频,亚洲日韩高清在线亚洲专区,亚洲VA成无码人在线观看天堂,免费人成在线观看网站,乱人伦中文字幕在线,欧美精品+在线播放,久久久久亚洲AV无码专区导航,国产成人免费高清激情视频

網(wǎng)站導(dǎo)航
首頁 > News > Industry news
展開分類
What is the difference between remote control grab and hand pull grab?
發(fā)表時間:2022-01-14 15:29:34
  The remote control grab is more convenient and advanced than the hand-held grab. Why install the troublesome and backward hand-held device on the convenient and advanced remote control grab? There is no way to use the hand-held device as an emergency because of the failure of the remote control grab. The principle of remote control grab with hand pulling device is very simple: it is to install the upper part of the electromagnetic reversing valve and connect a thin wire rope on the headgear, so it has no advanced nature. Moreover, manual is only to solve the failure of the electrical part of the remote control grab, while the failure of the hydraulic part can not be solved by hand.