Komplettset robuste Kupfer Wasserschlüssel/Spießventil Federschrauben für Trompetenteile
Full Set Trumpet Water Keys/Spit Valve+Springs+Screws+Water Key Holders(included 1set Big,1 set Small ). Trumpet repair maintenance parts. 2 Set Trumpet Repair Tools（1set Big,1 set Small）. We'd like to settle any problem in a friendly manner.