Top fire FM-MD21 vs Qtour E07 vs Ican E12 FRAMES

[ilfreerider]

https://www.qyhcarbon.com/full-suspension-carbon-ebike-frame-fit-for-shimano-du-ep800-motor_p42.html
https://www.top-fire.com/fully-internal-cable-routing-suspension-electric-mtb-frame_p17.html
https://www.icanbikes.com/product/carbon-suspension-mtb-shimano-boost-e-bike-frame-e12/

Hi !

All 3 frames looks the same,is there anyway to know who is the actual manufacturer and if there are any quality diferrences betweeb them ?

THX !