The precedent of the manufacturer company: Is this company enough experienced in manufacturing kebab skewer machines?
Cooperation: which companies or organizations has it previously partnered with?
Success: was this company successful in previous projects?
Brand: are the products of this company a well-known brand?
Machine mechanism: is the mechanism of the machines hydraulic or gearbox?
The quality of the engine of the machines: is the engine of the machines first-grade or not?
The quality of the parts of the machines: Are you sure about the durability of the parts of the machines?
The body of the machines: the body of the machine should be fit to work conditions and don’t corrode in vicinity of humidity.