This isn't Overloading but using the Wrong Truck for the wrong job.
The load is out of balance. They should have used a flatbed trailer mated to a Semi. Hapa hakuna mzigo.
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My company Scania G410 Truck easily hauls 2 such Mild Steel Rolls from MSA to Nairobi. Each of these weighs 14,300KG. If not properly secured they easily overturn the truck.