vector education

1 .  Bronze/कांसा  -   Cu (90%) + Sn (10%). 2 .  Brass/पीतल - Cu ( 70%) + Zn (30%). 3 .  Munz metal/मुंज मेटल  - Cu (60%) + Zn (40%) ...

website kaise banaye ? dosto  ye ek aisa sawal hai jiska jawab mujhe bhi nahi pta ta lekin maine jb ispar research kiya to tb jakar mujhe j...