$params = array(
    'post_type' => array('product', 'product_variation'),
);`

$wc_query = new WP_Query($params);

if ($wc_query->have_posts()) :
    while ($wc_query->have_posts()) :
             #¿Cómo mantengo los datos??
    endwhile;
    wp_reset_postdata();
else:
    _e( 'No Products' );
endif;