This vedio is showing about manufacturing hollow type swivel base jack.
The big difference between base jack is that swivel base jack can turn 180 degrees with nuts and lugs.
There are two types of swivel base jacks,one is hollow stem swivel base jack,the other is solid stem base jack.
OD30/32/34/36/38mm The size of swivel base jack can be customizde.
Export to 55 countries
Wellmade Scaffold, China (ISO09001 & CE)
sales@wm-scaffold.com
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#scaffold#swivel base jack#construction scaffolding#building scaffolding#wellmade scaffold#wellmade
