Procurement of aerospace chemicals (PCC), such as oils, greases, adhesives, sealants, etc., intended to ensure the continuation of processing phases on components, accessories, and mechanical parts, related to the completion of scheduled inspections and applicable Maintenance Programmes, such as corrective maintenance and general overhaul, on the HH-101, AW-139, and TH-500 weapon systems, at the Department, the 9th Wing in Grazzanise (CE), the 15th Wing in Cervia (RA), the 31st Wing in Ciampino (RM), and the 72nd Wing in Frosinone (FR).