... heater rod -Main material: Molybdenum silicon powder -Shapes:U/W/X/L type -Dia: 3/6,4/9,6/12,12 ... /24mm Old craft W,X type mosi2 glass heater rod with firm welding point MoSi2 ... used correctly can be avoided.A. Size:1700°C: d x c: Φ3/6,Φ4/9,Φ6/12,Φ9/18,Φ12 ... /24 and so on1800°C: d x c: Φ3/6,Φ4/9,Φ6/12,Φ9/18,Φ12 ...