标准编号SANS 1700-2-20 Ed.1(2003)
标准名称Fasteners - Part 2: Screw Threads - Section 20: Iso General Purpose Metric Screw Threads - Tolerances - Limits Of Sizes For Internal Screw Threads To Mate With Hot-dip Galvanized External Screw Threads With Maximum Size Of Tolerance Position H Before Galvanizing
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