液压油缸油封UN35X55X12 38X45X6 38X50X10 38X48X10 37X47X10

U/Y型圈液压油封UN30X37X38X40X42X43X45X47X48X50X5X6X7X8X10X12

U/Y型圈液压油封UN30*37*38*44