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Njikọ Nna-ukwu maka ebuli ihe dị n'ụsọ osimiri
Udi: Ọkwa 8 nna ukwu njikọ, mgbakọ ukwu njikọ, ọdụ ụgbọ mmiri na-ebuli elu, akpa DNV nke dị n'ụsọ osimiri, DNV 2.7-1, EN 12079-2, EN 1677-4, ibuli yinye njikọ okirikiri, eriri 8 na-ebuli elu,
(onye na-emepụta yinye njikọ gburugburu ígwè)
Udi: Ọkwa 8 nna ukwu njikọ, mgbakọ ukwu njikọ, ọdụ ụgbọ mmiri na-ebuli elu, akpa DNV nke dị n'ụsọ osimiri, DNV 2.7-1, EN 12079-2, EN 1677-4, ibuli yinye njikọ okirikiri, eriri 8 na-ebuli elu,