How to display product SKU in Woocommerce product card

As it often happens, we do not need product SKU where it is placed in the template. To display in the right place, use this code:

<?php echo '' . $product->sku . ''; ?>

When I published this code on a test project (in /woocommerce/single-product/short-description.php) as a result, the product SKU was not displayed, because it was necessary to add global $product; above.

Full code:

<?php
global $product; 
echo '' . $product->sku . ''; 
?>