丁晴O型密封圈内径*线径284.3/289.3/293.8*3.1耐磨耐油

丁晴O型圈内径*线径284.3/289.3/293.8*3.1耐磨耐油密封圈

耐油丁青O型圈内径289.3/293.8/294.3/299.3/304.3/306.3*线径3.1

丁晴O型密封圈内径*线径289.3/293.6/294.3*5.7耐磨耐油

丁晴橡胶内径垫圈

密封圈FAST/法斯特丁腈

O型圈 日标G270/G280/G290/G300*269.3/279.3/289.3/299.3*5.7

O型圈 密封圈 X 内径 外径 288.6*289.3*293.6*294.3*295 线径5.7

耐油耐高温日标丁腈/氟胶O型圈内径279.3/289.3/299.3/309.3*5.7

耐油耐高温日标丁腈/氟胶O型圈内径279.3/289.3/299.3/309.3*5.7

耐油耐高温日标丁腈/氟胶O型圈内径279.3/289.3/299.3/309.3*5.7

优质NBR黑色丁晴丁氰美标O型圈 G285-284.3*5.7/G290-289.3*5.7

A级JIS日标耐油0型圈密封圈G290-289.3*300.7*5.7日本国家标准O圈

【甬成】丁腈O型圈NBR内径283.6/284.3/288.6/289.3*5.7 耐油防水

氟胶O型圈 FKM X 内径 外径 259.3*269.3*279.3*289.3 线径5.7

耐油耐高温日标丁腈/氟胶O型圈内径279.3/289.3/299.3/309.3*5.7

进口VITON/FKM氟胶O型圈GS系列GS290 289.3*3.1日标耐高温密封件

内径*线径278.6*279.3*283.6*284.6*289.3*5.7耐磨耐油O型圈

EPDMO型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*3.1mm

丁晴O型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*5.7mm

丁晴O型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*5.7mm

进口氟胶O圈内径284.3/288.8/289.3*3.1耐高温O型圈Viton密封圈

高端O型圈 密封圈 X 内径 外径 288.6*289.3*293.6*294.3线径5.7

丁晴O型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*5.7mm

O型圈密封圈O形圈丁腈胶线径5.7

现货EPDMO型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*3

进口氟胶O圈内径284.3/288.6/289.3*5.7耐高温O型圈Viton密封圈

丁晴橡胶圈内径288.6/289.3/293.6/294.3/J298.6/299.3线径5.7mm

高品质棕色氟胶FKM/VITON日标O型圈G290 289.3*300.7*5.7

进口VITON/FKM氟胶O型圈G系列G290 289.3*5.7日标耐高温密封件

进口VITON/FKM氟胶国标O型圈内径289.3/293.6/294.3/298.6*5.7

氟胶O型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*3.1mm

氟胶O型圈内径289.3/294.3/299.3/304.3/309.3/314.3/319.3*5.7mm

油润细腻289.3克青白玉把件手玩件新疆和田玉籽料原石料独籽玉