Ground Screw, Pipe Fititngs, Elbows manufacturer / supplier in China, offering High DIP Galvanized Spiral Screw, Ground Anchors for Solar Panel, Ground Screw for PV Bracket (ZHLX-F-89) and so on.
It is the last photo.
You have seen all photos.
The video content is the working process of spiral hammers which used to install ground screws.It makes
the installation more convinient and quickly.