title: Angular Material chain combine via md-select from arrays, form inputs array
body: <p>I have a little problem with chain combine in Angular Material. I want to "replace" this solution <a href="http://jsfiddle.net/pythondave/JUZDf/" rel="nofollow noreferrer">link to jsfiddle</a> to Material using md-select and md-option.</p>
  
  <p>How must it works? Simple.
  Scenario:</p>
  
  <ol>
  <li>First md-select: select e.g. Manufacturer. </li>
  <li>Second md-select: select e.g. Model</li>
  <li>Place a price from array to text input as value.</li>
  </ol>
  
  <p>Array struct:<br/></p>
  
  <p>Manufacturer<br/>
  -Models<br/>
  --Model (model name and price)<br/></p>
  
  <p>One more thing what I want to do is array from these form inputs like this:</p>
  
  <pre><code>master = [
    {
      "product": {
        "name": "1936 Harley Davidson El Knucklehead",
        "price": 24.23
       }
    }
  ]
  </code></pre>
  
  <p>Could anyone help me? Show or tell me how can I do it.
  I'll be very appreciate for help.</p>
  
  <p>Regards</p>