The phrase "attach each one" is correct and usable in written English.
It can be used when instructing someone to connect or include individual items or documents in a larger context, such as an email or report.
Example: "Please make sure to attach each one of the required documents before submitting your application."
Alternatives: "include each one" or "add each one".
But when I got home, I realized that I had to fill out five different receipt forms and attach each one to a separate rebate receipt.
They take massive numbers of protein bits, known as peptides, and attach each one to the shell of a bacterial virus.
Attach each one with a dab of glue Pom pom eyes are also a cute addition.
Once it's secure, make more petals and attach each one in turn until your flower looks the way you want it to.
They then attached each one to a unique sequence called a barcode, and introduced all of these barcoded scratchpads into the genome of an individual cell.
Clapboards are attached horizontally, each one overlapping the next one down.
Upon the receipt of the orders the accused in each instance measured out the liquors called for at his store in Whitehall, put the same in the jugs or other vessels sent, and attached to each one a tag having the address of the party ordering the liquor.
The payment stream is an activity feed of all your payments and your friends' payments, along with the messages attached to each one.
The uncertainty over the modus operandi of biotic development on Earth has been a mixed blessing to exobiological studies: while it has allowed the generation of numerous theories, it has been very difficult to establish what significance should be attached to each one.
There are no strings attached and each one understands the parameters of the relationship.
It worked, instead, to advance a separate policy agenda attached to each: one that implemented new evaluation processes for teachers, ended a "last in, first out" system of layoffs and advanced performance-based reviews.
