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@cip1000
Them there hubs are made from "aero grade 7075-T6 alloy for every parts (sic) of the hubs, this material is 300% stronger than the common alloy used in the cycle industry"
Insist on "space grade" aluminium! Don't settle for "aero grade" which is often used by unscrupulous vendors hawking basic "plane grade" products and "plane grade" is rubbish next to alloy that is ready for the rigors of space.
If there is an obvious crack that has propagated, or I was bored, I'd have a chat with the manufacturer, but likely they will say that it was built wrongly or something else but that it was surely all your fault, (but in French).
The "the common alloy used in the cycle industry" probably has a lower Young's modulus.