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优质美标O型圈耐油耐磨丁腈O形密封圈247.24/255.59/266.29*3.53
美标O型圈耐油耐磨丁晴橡胶
美标O型圈AS568-273/274/275 247.24/255.59/261.69/266.29*3.53
丁晴O型密封圈内径*线径253.6/255.39/255.59*3.53耐磨耐油
丁晴O型圈内径*线径253.6/255.39/255.59*3.53耐磨耐油密封圈
星X型形密封圈234.54/240.89/247.24/255.59/266.29/405.26*3.53
O型圈 丁晴/线径3.53MM内径255.39/255.59/265/266.06/266.29
耐高温日本O型圈JIS氟胶耐腐蚀
。美标O型圈AS568-273/274/275 247.24/255.59/261.69/266.29*3.5
【甬成】丁腈O型圈NBR内径253.6/255.39/255.59/265*3.53 耐油
X型 星型圈 内径247.24/253.6/255.59/266.29/278.99/291.69*3.53
O型圈丁晴胶内径253.6/255.39/255.59/265/266.06/266.29线径3.53
进口VITON/FKM氟胶O型圈AS568-274 255.59*3.53 美标密封件密封圈
