第二次世界大战后至60年代,各国多趋向于重点发展中型坦克和步兵战车,以此作为基本车型来发展坦克装甲车辆的系列。60年代以前,坦克通常按战斗全重、火炮口径,分为轻型、中型和重型。轻型坦克重10—20吨,火炮口径一般不超过85毫米,主要用于侦察警戒,也可用于特定条件下作战;中型坦克重20—40吨,火炮口径最大为105毫米,为装甲兵完成主要作战任务;重型坦克重40—60吨,火炮日径最大 From the second world war to the 1960s, many countries tended to focus on the development of medium-sized tanks and infantry fighting vehicles as a basic model to develop a series of tank armored vehicles. Prior to the 1960s, tanks were generally classified as light, medium and heavy with full-fledged battle weight. Light tanks weighing 10-20 tons, artillery caliber generally not more than 85 mm, mainly used for reconnaissance and warning, can also be used under specific conditions of combat; medium-sized tanks weighing 20-40 tons, artillery caliber maximum of 105 mm, to complete the main combat armored forces Mission; heavy tanks weighing 40-60 tons, the largest artillery day