how to use price gun Machine and how to repair

hello doston kaise ho aap sab mein aapka swagat karta hun Apne RUclips channel (B2 vlogs) main.
aaj ki jo video banai ja rahi hai vah banai ja rahi hai rate gan machine ke upar ki kaise hum Ghar baithe Machine repair kar sakte to please video pura dekhen jo bhi bhai mere channel per new hai please mere channel ko subscribe Karen