<p>When do mechanical engineer specialize their fields?, since I want to become a hvac mech engineer, do all of them study the same thing or what? I’m really confuse about this =[ help!!</p>
<p>When do mechanical engineer specialize their fields?, since I want to become a hvac mech engineer, do all of them study the same thing or what? I’m really confuse about this =[ help!!</p>