how to extract multiple HTML element's value in Jmeter?

As per my knowledge, should I use multiple CSS extractors for extracting each value?

Here is HTML:

<html>
<head>
</head>
<body>
    Redirecting

    <form id="pageform" action="abc.shtml" method="post">
                        <input type="hidden" name="key1" value="abc" />
                        <input type="hidden" name="appversion" value="4.0.0" />
                        <input type="hidden" name="resURL" value="https://test.com" />
                        <input type="hidden" name="sessionValidity" value="2021-07-16T07:35:25Z" />
                        <input type="hidden" name="allow" value="false" />
                </form>

    <script type="text/javascript">
        function formAutoSubmit () {
            var frm = document.getElementById("pageform");
            frm.submit();
        }
    window.onload = formAutoSubmit;
    </script>
</body>

And I have to use name and value in the next sampler from this respone.

Looking for help on this. Let me know if you need any more info on this.

Thanks in advance!!