JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div>
  <input class="codigo" type="text" value="8888"/>
  <input class="quantia" type="text" value="3333"/>
  <select class="maquina">
    <option value="op1">OP1</option>
    <option value="op2">OP2</option>
    <option value="op3">OP3</option>
    <option value="op4">OP4</option>
  </select>
  <input type="button" class="valores" value="teste"/>
</div>

JavaScript

$(document).ready(function () {
		$(".valores").click(function () {
    		var valor = $(this).parent().find('.codigo').val();
        var valor1 = $(this).parent().find('.quantia').val();
        var valor2 = $(this).parent().find('.maquina :selected').val();
        console.log(valor);
        console.log(valor1);
        console.log(valor2);
      });
});