@murtaza02 got your private message well your dad contacted me through my facebook page so i dont know that he was your dad. I comment because mostly people get information and dont reply me or any other pakwheeler who is giving our knowledge/experience to us free. So iam sorry and no hard feelings bro.
Btw @murtaza_murti i have same questions, kindly please let me know too WTF is with your username
just for my general knowledge 