Add custom field column to WC products admin table

Added my custom column hpd

/* WC HPD */
//manage_product_posts_custom_column
add_filter( 'manage_edit-product_columns', 'products_customcol_fn' );
function products_customcol_fn($columns){
    $new_columns = (is_array($columns)) ? $columns : array();
    $new_columns['HPD'] = 'hpd';

    return $new_columns;
}
add_action( 'manage_product_posts_custom_column', 'products_customcol_value_fn', 2 );
function products_customcol_value_fn($column){
    global $post;
    $hpdname = get_post_meta( $post->ID, 'hpd_name', true );
    if ( $column == 'HPD' ) {           
        if ( isset($hpdname) ){
        	echo $hpdname;
        }else{
        	echo "-";
        }
        
    }
}
add_filter( "manage_edit-product_sortable_columns", 'products_customcol_sort_fn' );
function products_customcol_sort_fn( $columns ) {
    $custom = array(
        'HPD'    => 'hpdname'
    );
    return wp_parse_args( $custom, $columns );
}