2 heads (multi heads) in one induction coil from quadrate pipe (1)

2 heads (multi heads) in one induction coil from quadrate pipe (2)

2 heads (multi heads) in one induction coil from quadrate pipe (3)

2 heads (multi heads) in one induction coil from quadrate pipe (1)

2 heads (multi heads) in one induction coil from quadrate pipe (2)

2 heads (multi heads) in one induction coil from quadrate pipe (3)