hnbr密封圈规格内径*线径(1.78-133.07*1.78MM) hnbr密封圈规格内径*线径(1.24-247.32*2.62MM) hnbr密封圈规格内径*线径(4.34-456.06*3.53MM) hnbr密封圈格内径*线径(10.46-557.61*5.33MM) hnbr密封圈规格内径*线径(113.67-557.66*6.99MM) hnbr密封圈规格内径*线径(24.4-144.4*3.1MM) hnbr密封圈规格内径*线径(149.3-299.3*5.7MM) hnbr密封圈规格内径*线径(149.5-399.5*8.4MM) hnbr密封圈规格内径*线径(0.8-500*0.5-1MM) hnbr密封圈规格内径*线径(1-2000*1-15MM)