... can be 30mm,40mm and 50mmType,with or without brake *****************************************************FC51-0105 ,Dia can be 30mm,40mm ... and 50mmType,with or without brake ****************************************************FC51-0206 ,Dia can be 30mm,40mm ... and 50mmType,with or without brake ****************************************************FC51-0202 ,Dia can be 30mm,40mm ...