introduce to vs. introduce into

introduce to: to present someone to someone else for the first time so that they can become acquainted

• I would like to introduce you to my cousin, Sarah.
• We proudly introduce to you the Dutch team.
• Let me introduce you to him.

introduce into: to put something into use for the first time, or to put something into a new place

• New computers have been introduced into the office.
• The grey squirrel was introduced into Britain from North America.
• Fuel was introduced into the jet pipe.