Unit:
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| ②,This table data is referenced from ASME B18.21.1, as in some foreign trade organizations and personnel, the narrow series (N) of ASME B18.21.1 A-type washer is referred to as SAE flat washer; The wide series (W) is known as USS flat washer, and some customers are still accustomed to these names. Therefore, a separate table is made for the above types, and the numerical units are converted from inches to millimeters for ease of communication and exchange. |
