This specially hollow base-material wall is far different from concrete (solid base-material), so we also need to use specially chemical anchoring solution of the injection adhesive product called VMU Plus of MKT brand (made in Germany), and to use it with 2 accessories of (Plastic mesh sleeve + Threaded anchor rod M10 or M12).
The effective result after site pull-out tests conducted on the anchors, only hollow walls failure happened, the anchoring block of chemical and rod is intact.