induction melting metal sand after air cooled preheating

⇓

induction melting metal sand after air cooled preheating (1)

induction melting metal sand after air cooled preheating (2)

induction melting metal sand after air cooled preheating (3)

induction melting metal sand after air cooled preheating (4)

induction melting metal sand after air cooled preheating (5)

induction melting metal sand after air cooled preheating (6)

induction melting metal sand after air cooled preheating (7)

induction melting metal sand after air cooled preheating (8)

induction melting metal sand after air cooled preheating (9)

induction melting metal sand after air cooled preheating (10)