The Gupta's craftsmanship in iron and steel is especially notable because

-of the works' unusual and intricate subjects.

-the works have lasted for nearly two thousand years.

-the works, though corroded,

give insight into the Gupta's culture.

-it is the work of the Guptas' children.

The answer is:

The works, though corroded, give insight into the Gupta's culture.

Explanation:

Gupta culture's works are more than 2,000 years old.

the works, though corroded, give insight into the Gupta's culture.

Explanation:

The Gupta empire was an ancient Indian empire that existed in the late 3rd century. And the religion was that of the Hindu dynasty and they gave the cons that were notable due to there inscription and offered in signed to the Gupta culture through they may be corroded by the time.