"contains not only" is correct and usable in written English.
You can use it to indicate that something has more than one component or characteristic. For example, "This dish contains not only vegetables, but also some type of protein."
Every real political play contains not only vibrant criticism of a ghastly situation.
Genealogy: The PBS site (www.pbs.org/lewisandclark) contains not only a roster of Corps members, but also short biographies.
Vito Acconci's "Hands Down/Side by Side" contains not only photographs but instructions, scrawled in crayon, for its own making.
It contains not only history but a sense of how the shoes and bags have been developed or modernized.
It contains not only the fuel cells and the storage system, but the motors, suspension and electronic control system.
After that, we propose a hybrid sleep mode that contains not only ONU deep sleep mode but also independent sleep modes for the transmitter and the receiver.
In every step of computation of the deduced controller, it contains not only current step of state feedback but also linear combination of some former steps of control.
Although these bilayers are important for the permeability barrier, the ECM contains not only lipids but also enzymes, structural proteins, and antimicrobial peptides that impact barrier function.
Parliament's unreformed upper house contains not only a throne but also 92 peers whose qualification for writing the law is who their father was.
You enter via an anonymous door on Torstrasse, and this bar contains not only a bed, but toilet cubicles with sliding doors to the next cubicle.
His legacy contains not only a life of radical courage and political integrity; it is also ranges alongside an even greater reputation as an illustrious writer.
