Here you go:
<?php wp_list_pages("meta_key=type&meta_value=web&title_li=&child_of=15&sort_column=ID"); ?>
Note the meta_key and meta_value in the syntax and reuse it.
Here you go:
<?php wp_list_pages("meta_key=type&meta_value=web&title_li=&child_of=15&sort_column=ID"); ?>
Note the meta_key and meta_value in the syntax and reuse it.