Are you by any chance a non english speaker or using some translating software? In english, armor refers to steel plate and few people have much interest in its details. The first photo is, I think, a picture of a hedgehog projectile, ie. a spigot mortar with a shaped charge warhead, fired in salvo at submerged submarines close to the surface. In the second, without anything to reference for dimensions, it would be nearly impossible to id.