膨体四氟垫片软四氟垫圈膨化聚四氟乙烯ePTFE密封垫法兰密封圈

硅胶O型圈外径48/49/50/51/52/53/54/55/56/58/58/59x4线径 ¥0.39

石墨填料环定制耐高温高压法兰泵轴纯石墨密封垫圈 ¥1.10

硅胶O型圈外径210/215/220/225/230/235/240/245/250/255/260x5.7 ¥1.69

丁腈O型圈内径180/185/190/195/200/205/210/220/230/240*2.65 ¥1.90

EPDM三元乙丙O型圈密封圈50/55/60/65/70/75/80/85/90*8.6mm ¥0.60

D2222型304内外环不锈钢密封垫片法兰阀门垫片金属石墨缠绕垫 ¥1.20