O-rings . Wɔde O-ring nsɔano di dwuma wɔ mfiri nnwinnade, po so ahyɛn, kar, ahunmu mfiri, mfiri a wɔde yɛ dade, mfiri mfiri, mfiridwuma ho mfiri, mfiri a wɔde si adan, mfiri a wɔde tu fam, mfiri a wɔde yɛ petrol, plastic mfiri, kuayɛ mfiri, ne mfiri ahorow ahorow, a wɔde di dwuma kɛse wɔ nsɔano nneɛma ahorow mu. O-ring seals a ɛwɔ ngo, acid ne alkali mu, grinding, nnuru a ɛyow ne mmeae afoforo da so ara di nsɔano pa, ahopopo a ɛtwetwe.
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