确定主要维度。所示为以下类型:图1-A型综框，带上下端环，O形；图2a）-B型综，上端环笔直弯曲成U形；下端环，O形；图2b）-B型综，上端环弯曲成U形，下端环弯曲成O形。-取代第一版（ISO 365-1976）。

Establishes the main dimensions. The following types are shown: figure 1 - type A heald, with upper and lower end loops, O-shaped; figure 2a) - type B heald with upper end loop straight to be bent in U-shape; lower end loop, O-shaped; and figure 2b) - type B heald with upper end loop bent in U-shape, lower end loop, O-shaped. - Replaces the first edition (ISO 365-1976).