Indefinite length (usually length）

 Indefinite length (usually length)

　　Where the product size (length or width) is within the range specified by the standard and does not require a fixed size, it is called indeterminate. Indeterminate length is also called normal length (pass length). For metal materials delivered in irregular lengths, as long as they are delivered within the specified length. For example, for ordinary round steel not greater than 25mm, its usual length is specified as 4-10m, and round steel with a length within this range can be delivered.