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  • ISO 4570-1-1977 - 中外标准 - - 1977/2 - 作废
    Specifies limit dimensions and tolerances for tyre valve threads. The designation of valve threads shall be as given in table 1. The profile is shown in the figure together with the nut and screw diameters. Table 2 gives the limit dimensiosn for screws and nuts.
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