If you mean Prince PPR PU fittings, these are fittings used with Prince PPR (Polypropylene Random Copolymer) piping systems, typically for hot- and cold-water plumbing.
Common fittings include:
Elbows (90° / 45°)
Tees and reducing tees
Couplers/sockets
Reducers
Male/female threaded adapters
Unions
End caps
Valves and other transition fittings
If you're looking for price, catalogue/specifications, sizes, or where to buy Prince PPR PU fittings, tell me which one you need.
