... mm; Outer diameter: OD8-50mm; Power: 100-10000KW. Our company can also process, design, produce goods according to each technical ... ,so no extra ventilation is requried Dear customer: Our company si dealing with Clear quartz tube ,milky/opaque quartz tube ... carbon heater tube/lamp , quartz tube heater , halogen heating lamp ,futher processing quartz tube ,U bend quartz tube, Our company have made these ...