が作られて

is made; being made

→ が
phrase Common #5,394
is made; being made が marks the subject, and 作られて is the te-form of the passive verb 作られる. It usually connects to what follows, such as いる to describe something that is made or has been made.
JA: この家具が地元の木で作られている。
EN: This furniture is made from local wood.