Weld ọkpọkọ weld porosity na-emetụta ọ bụghị nanị na pipeline denseness, n'ihi na pipeline ntapu na corrosion ga-akpalite n'ụzọ dị ukwuu ibelata weld ike na siri ike.Ihe na-akpata weld porosity bụ: mmụgharị na mmiri, unyi, oxide na ígwè filings, ịgbado ọkụ ihe na mkpuchi ọkpụrụkpụ ...
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