In their analysis of the fingerprints, they said, they hope to connect Mr. Salameh to the bomb-making chemicals found in the warehouse in Jersey City and perhaps develop leads to others.

Mr. DePippo also disclosed that the suspect, after his arrest, had been told not to wash his hands or put them in water, suggesting that they were to be examined for traces of bomb-making chemicals.

Reading from a long indictment today, prosecutors said the men had used false credit cards to buy bomb-making chemicals from pharmacies across the country.

Inside his rental car, agents found 130 pounds of bomb-making chemicals and detonator components.

They and a third Egyptian were also charged with possessing bomb-making chemicals, but have not yet been tried.

The agents did not find bomb-making chemicals or components, but they did seize three bomb-making publications, including one about homemade detonators, according to court documents.

He is suspected of leasing a storage locker where bomb-making chemicals were mixed and renting the van that carried the bomb into a trade center parking garage.

The Government contended that Mr. Salameh had repeatedly telephoned Mr. Ayyad a day before the bombing from a storage company where bomb-making chemicals were kept.

The tank held nonradioactive bomb-making chemicals, but some plutonium is stored in the building.

On Friday, they found in the locker hundreds of pounds of bomb-making chemicals, some of which officials said yesterday were so unstable that even the slightest disturbance could have set off an explosion.