ports into the cilinder

the idea is generate something like this, were the ports, (holes)., are drawn into the cilinder

heres a pic 

i already made the transfers, and look something like this.,

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but when i extrude the cilinder diameter. 

here is the result

how can make the holes into the cilinder? 

also here is the archive .sldprt , if u wanna take a look,.

SolidworksDrawings And Detailing