How to fit up rolling angle in pipe

friends is video me bataya gya hai ki
elbow ko kisi bhi degree me fit up karna ho to kaise karenge
bahut hi Sarah bhasa me samjhaya gya hai asa karta hu ki aapko samjh me aaya hoga

chanel ko degree me kaise cutting kare👇
   • How to cut the channel and beam any  ...  

how to fit up flange to pipe any degree👇
   • How to fit up flange to pipe any degree  

how to make a bevel formula👇
   • how to make bevel formula of pipe & p...