Imagine the conversation that came before this response? Response: The class was developed by the Spanish company Empresa Nacional Bazán in 1982.
Dialog:
[1]. What is the Mantilla-class patrol vessel?.
[2]. Mantilla-class patrol vessel  " Mantilla"-class patrol vessels are offshore patrol vessels in use by the Argentine Coast Guard since 1983..
[1]. Who designed the vessel?.
[2]. 