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油封47x70x8 47x68x10 9 47.70.10 477012 47x71x10油封密封圈
NQK骨架油封47x71x10 52x71x9 53x71x9 57x71x7 25x72x7 密封圈
NQK骨架油封47x71x10 52x71x9 53x71x9 57x71x7 25x72x7 密封圈*
进口质量骨架油封NQK丁青密封圈
骨架油封 71x88x8 x10 72x88x8 73x88x9 74x88x8 x12 47x88x10/12