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这是本杂志4月号普通档(一型)磁带的测定续编,关于铬档(二型)磁带的测定,此次所测定的是表1示出的具有代表性的8个公司11种C60型铬档(二型)磁带。
This is the April issue of the magazine ordinary file (type 1) tape re-measurement, on the chrome file (type 2) tape measurement, measured this time is shown in Table 1 representative of eight companies 11 C60-type chrome file (type II) tape.