Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Ko te Mark IV i hangaia e nga kaihanga e ono: Metropolitan (te kaihanga nuinga), Fosters o Lincoln, Armstrong-Whitworth, Coventry Ordnance Works, William Beardmore me te Kamupene me Mirrlees, Watson & Co., me te whakaputa matua i te 1917. I tukuna te ota tuatahi mo te 1,000 tanks ki Metropolitan i Akuhata 1916. I whakakorehia, i whakahoutia, i whakarerekehia i waenga o Akuhata me Tihema 1916. Ko era atu kaihanga, i kirimana mo te 100 anake o nga tanki ia, i tino aukati i te pakanga i waenga i a Stern me te Tari Pakanga.  Pātai: E hia ngā kaihanga rerekē i hanga i te Mark IV?
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