Flow Ring NO.01 53*33*42 mminner ring diameteradjustable Flow Ring NO.01 53*33*42 mminner ring diameter adjustable Flow Ring NO.02 46*25*48 mm / inner ring diameter adjustable Flow Ring NO.03 35*34*52 mminner ring diameter adjustable Flow Ring NO.04 57*32*38 mminner ring diameter adjustable Flow Ring NO.05 41*34*42 mminner ring diameteradjustable Flow Ring NO.05 41*34*42 mminner ring diameter adjustable Flow Ring NO.06 45*37*47 mm / inner ring diameter adjustable Flow Ring NO.07 58*30*48 mm / inner ring diameter adjustable Flow Ring NO.08 52*37*52 mminner ring diameteradjustable Flow Ring NO.08 52*37*52 mminner ring diameter adjustable Flow Ring NO.09 46*25*45 mminner ring diameter adjustable Flow Ring NO.10 38*51*42 mminner ring diameter adjustable Flow Ring NO.11 58*51*58 mm / inner ring diameter adjustable Flow Ring NO.12 43*36*43 mm / inner ring diameter adjustable Flow Ring NO.13 55*45*48 mminner ring diameteradjustable Flow Ring NO.13 55*45*48 mminner ring diameter adjustable Flow Ring NO.14 47*46*50 mm Flow Ring NO.15 65*36*40 mm