The mating state between a flange bore and a shaft and the position error for a flange shaft in a bore has an important influence on the assembly accuracy of precision products. In view of the fact that three-dimensional cylindricity was usually ignored in existing researches. a contact method was developed. which was based on equal vector judgment criterion and measured profile data ... https://thegreensjunglebeautyshops.shop/product-category/eye-palette/