A professional engineer of car air condition,one another branch work shop in shoba bazar faqir sarai alamgeer ustad personally himself fix 1N compressor in my Corolla car and since last 3 years still in same gas and same colling i didnt change or filled any more gas or didnt worked in air condition still as cool as last 3 year,amazing work so cold all is perfect and reasonable price i have paided to alamgeer ustad,a honest man earn halal for his family and work so hard,i my self recommend alamgeer ustad to all of u ,all of you will be very satisfied.