// Display specific product attributes in cart items on cart and checkout pages
add_filter( 'woocommerce_get_item_data', 'display_cart_item_custom_data_on_cart_and_checkout', 10, 2 );
function display_cart_item_custom_data_on_cart_and_checkout( $cart_item_data, $cart_item ){
    $attributes = array('Supplier', 'Delivery','Availability'); // Here define your product attributes

    foreach ( $attributes as $attribute ){
        $values = $cart_item['data']->get_attribute($attribute);

        if ( ! empty( $values ) ) {
            $cart_item_data[] = array(
                'name'  => wc_attribute_label($attribute),
                'value' => $values,
            );
        }
    }
    return $cart_item_data;
}