barra con rocchetto super pro sp carlton compatibile con al ko alpina castor dolmar efco frontier homelite husqvarna john deere jonsered mc culloch partner zomax effecient progreen per motosega modelli kb5000 p400 p450 p460 p462 p470 p472 p480 p482 p500 p510 p522 a 40 a 40e pro540 pro600 prof 41 pro