It can be used in the fields of television transmitter, trans poser, launching instruments of middle and short wave, satellite ground station, radar, and short-wave communication, and the field of high-frequency signal transmission of low attenuation range and low standing wave ratio. Specification: O.D./W.T.mm ≥0.3 ≥0.36 ≥0.41 ≥0.5 ≥0.61 ≥0.71 ≥0.81 ≥1.02 ≥1.22 ≥1.5 ≥6.35 √√ √ √ √ √ √ √ ≥8.00 √ √ √ √ √ √ √ √ √ √ ≥9.52 √ √ √ √ √ √ √ √ √ √ ≥12.70 √ √ √ √ √ √ √ √ √ ≥14.00 √ √ √ √ √ √ √ √ √ ≥15.88 √ √ √ √ √ √ √ √ ≥19.05 √ √ √ √ √ √ √ 22 √ √ √ √ √ conductivity: 100% Note: The above datas are based on the normal size, and are for reference only. For special specs, we may make according to customers' special requirements