DIN ISO 8489-4-1997 纺织机械和附件.锥形圆筒.第4部分:印染用带4°20'半锥角圆筒的尺寸、公差和命名
Textile machinery and accessories - Cones for cross winding - Part 4: Dimensions, tolerances and designation of cones with half angle 4° 20 for winding for dyeing purposes (ISO 8489-4:1995)