Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: E wuru Mark IV site na ndị na-emepụta isii: Metropolitan (onye na-ewu ihe ka ukwuu), Fosters nke Lincoln, Armstrong-Whitworth, Coventry Ordnance Works, William Beardmore na Company na Mirrlees, Watson & Co., na isi mmepụta na 1917. E nyere iwu mbụ maka 1,000 tankị na Metropolitan n'August 1916. Mgbe ahụ, a kagburu ya, weghachite ya ma mezie ya n'agbata August na December 1916. Ndị na-emepụta ndị ọzọ, nke ọ bụla n'ime ha nwere nkwekọrịta maka ihe na-erughị tankị 100 n'otu n'otu, enweghị nsogbu n'ọgụ dị n'etiti Stern na War Office.  Ajụjụ: Olee ndị na-emepụta Mark IV dị iche iche?
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