QC/T 243-2018 in English

This standard specifies the requirements for the flatness of the wheel mounting surface and the corresponding testing methods. It provides detailed guidelines on the permissible tolerances and procedures for assessing the flatness of the wheel mounting surface. The document outlines the necessary equipment, measurement techniques, and criteria for determining compliance with the specified flatness requirements. It also includes information on the preparation of test samples and the conditions under which measurements should be conducted. The standard aims to ensure consistency and accuracy in the evaluation of wheel mounting surfaces across the industry.