This Japanese Industrial Standard specifies the shape and dimensions of coated abrasive flap wheels with flanges (hereafter referred to as "flap wheels with flanges").
DIN 6648-1979? 包裝材料.金屬制單壁啤酒桶.尺寸.要求
Describes the acceptance tests for verifying the performance of a coordinate measuring machine (CMM) used for measuring linear dimensions as stated by the manufacturer.
