关注微信公众号查券更方便
橡胶内径耐油密封圈
丁晴O型圈耐磨耐油内径*线494.66/506.86/523.26*5.33
进口氟胶内径481.46 494.66 506.86 523.26 532.26线径5.33 O型圈
【甬成】丁腈O型圈NBR内径494.66/506.86/523.26/532.26*5.33耐油