Hello again
I find solution for my problem.
There is In catalog\includes\application_top.php this:
<meta property="og:description" content="<?php echo preg_replace('/[^a-zA-Z0-9\s]/','',preg_replace('/\s+/',' ',preg_replace("/<br>/", "",$product_info['products_description']))); ?>" />
I change it to this:
<meta property="og:description" content="<?php echo preg_replace('/[^а-яА-Я0-9;:.,\s]/','',preg_replace('/\s+/',' ',preg_replace('<br/>', ' ',preg_replace('<b>', ' ',$product_info['products_description'])))); ?>" />
Now, If there is any latin character, will be ignore from description tag. It only shows - cyrilic symbols and - ; : .
I know that I have to do more changes... If I progress it, I will post here, for someone like me :)