"2.6"^^ . . "The PT-91 Twardy (\"hard\",\"tough\" or \"resilient\") is a Polish main battle tank. It is a development of the T-72M1 and first entered service in 1995. The PT-91 was designed at the OBRUM (OBRUM for O\u015Brodek Badawczo-Rozwojowy Urz\u0105dze\u0144 Mechanicznych \u2013 Polish for Research and Development Centre for Mechanical Appliances) and is produced by the Bumar \u0141ab\u0119dy company \u2013 part of Polish military consortium \u2013 Bumar Group."@en . . "6.86"^^ . "6.95"^^ . . "2.19"^^ . "3.7"^^ . . "3.59"^^ . "PT-91 \"Twardy\""@en . "PT-91M \"Pendekar\""@en .