Composite rating for fastened and machined parts: scores tightening torque, hardness and dimensional deviation against tolerance.
緊韌體擰緊扭矩、硬度、尺寸偏差三項檢測工具,依據GB/T 16823、GB/T 230、GB/T 1800等標準判定合格與否。適用於螺栓、螺母等緊韌體的質量檢測。