... T4/T5, stright, round tube 48 Heads Automatic Rotary Exhaust MachineSpecifications:1. 48 heads, for producing U, semi-spiral, spiral, T4/T5 ... . 48 head aluminum main plate: Aluminum alloy-401. 4. Electromagnetic Vacuum Valve: Japan CKD Stainless Steel Electromagnetic Valve. Electromagnetic Valve and ... pressing down and dismissing at head #41. Lamp Rotary Exhaust Machine, Fully Automatic, High Quality