31481552fixed-price contractsPT2026-03-30 21:09:40UF31481553contracts, firm priceNDUF31481554contracts, fixed priceNDUF31481555contracts, fixed-priceNDUF31481556contracts, lump sumNDUF31481557firm price contractsNDUF31481558fixed price contractsNDUF31481559fixed-price contractNDUF31481560lump sum contractsNDBT31480517contracts by manner of paymentPTRT31310141fixed pricesPTRT31310160sale pricesPTRT31310164list pricesPTRT31310167market pricesPTRT31310170equilibrium pricesPTRT31310198insurance valuationPT