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骨架油封50x28x7 50.28.8 50*28*10 28x50x7 28-50-8油封密
50x28油封50*28*750/28/850
氟胶骨架油封26x27x28x37x38x39x40x42x44x47x50x52x53x5x7x8x10
片 mm铁板00x28铁50 (包)厚x7/涂料 150mm10 片0马口测试120mm.
骨架油封 25x50x7 25x50x8125x50x10 25x50 12 28x50x8x28x50x 0
优质TC骨架油封26X47X28X40X45X48X50X52X55X7X8X10X12橡胶密封圈
六角内螺纹黑色尼龙双通柱m3*x7x19x20x21x28x30x32x35x40x50x60
碳钢镀黑锌KM沉头十字螺钉平头小螺丝M3M3.5M4M5M6x3x7x9x28x50mm