NBR丁晴胶O型圈外径30x34x35x37x42x47x50x52x54x58x60x62x65x6

进口NQK油封34*56/58/60/62/4/0

进口NQK油封34x56x58x6

氟胶TC骨架油封密封圈40x34x52x54x55x56x58x60x5x6x7x8x10x11x12

骨架油封密封圈40x34x52

FKM氟胶TC骨架油封40x34x52x54x55x56x58x60x5x6x7x8x10x11x12

氟胶TC骨架油封密封圈40x34x5r2x54x55x56x58x60x5x6x7x8x10x11x1

氟胶TC骨架油封密封圈40x34x52x54x55x56x58x60x5x6x7x8x10x11x12

氟胶TC骨架油封密封圈40x34x52x54x55x56x58x60x5x6x7x8x10x11x12