Source:http://ftr.wot-news.com/2014/09/16/9-3-test-3-is-7-armor-change/
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Hello everyone,
大家嚎， 

in Test 3, IS-7 turret armor was made a bit thicker. The lower part of the armor near the mantlet (you can see the zone becoming “more red” on the picture) was buffed from 240mm to 270mm, making the turret harder to penetrate (following numerous complaints of RU players, because IS-7 is the favourite tier 10 heavy on RU server). Overall it’s a buff, since on the old model (0.9.2), the same area is 240mm thick. Open the post for a (large) picture.
在9.3的三测中，IS-7的炮塔装甲变得更厚了。在靠近炮盾位置的下面的装甲（图上的话就是变得更红的那一块）（译注：把脸贴在屏幕上才能看清）被从240mmBuff到了270mm，让炮塔这个位置更加难以击穿（下面有很多毛服玩家在抱怨，因为IS-7是毛服最受欢迎的10级重坦）。总之这还是个buff，因为在9.2中，那一块还是240mm厚。点击看大图。

Please note that the armor zone behind and straight below the mantlet remains 240mm thick.
请注意在炮盾后头的那个区域依然保持着240mm的厚度