用途往复运动油缸、气缸活塞杆外露起防尘作用用的范围：一般机械通用机械材料：聚氨酯工作温度：-40+80标准来源：JB/T6657-93J形无骨架防尘密封dDHhdDJ-141422.51422.5J-161624.5741624.5J-181828.51828.5J-202030.52030.5J-222232.5952232.5J-252535.52535.5J-282838.52838.5J-303040.53040.5J-323242.53242.5J-353545.53545.5J-363646.51063646.5J-404050.54050.5J-454555.54555.5J-484858.54858.5J-505060.55060.5J-555567.55567.5J-565668.55668.5J-606072.56072.5J-636375.56375.5J-656577.56577.5J-707082.57082.5J-717183.51177183.5J-727284.57284.5J-757587.57587.5J-808092.58092.5J-858597.58597.5J-8888100.588100.5J-9090102.590102.5J-9595107.595107.5J-100100112.5100112.5J-105105119.5105119.5J-110110124.5110124.5J-115115129.5128115129.5J-120120134.5120134.5J-125125139.5125139.5J-130130144.5130144.5J-140140158.5140158.5J-145145163.5145163.5J-150150168.5150168.5J-155155173.5155173.5J-160160178.5160178.5J-170170188.514170188.5J-180180198.5180198.5J-190190208.5190208.5J-200200218.5200218.5J-210210228.5210228.5J-220220238.5220238.5J-225225243.59225243.5J-22722724312227243J-230230248.5230248.5J-240240285.5240285.5J-250250268.5250268.5J-260260278.5260278.5J-280280298.514280298.5J-300300318.5300318.5J-320320338.5320338.5J-340340358.5340358.5J-360360378.5360378.5J-380380398.5380398.5)