1. Основната концепция за неправилна дължина
The irregular length is also called the usual length, which refers to the situation where the product size (length or width) is within the standard range, but no fixed size is required. Metal materials delivered in irregular length can be delivered as long as they are within the specified length range. For example, ordinary round steel not larger than 25mm has a usual length of 4-10m, so round steel with a length within Този диапазон може да бъде доставен .
2. разбиране на двойно неправилна дължина
"Double irregular length" may not be a standard term commonly used in the industry. However, combined with the common steel length terms, it is speculated that "double" may be related to the concept of "multiple length", and "irregular length" is the uncertainty of its length.
3. Концепцията за многократна дължина
The fixed size required by the order is cut into integer multiples, which is called multiple length. When delivering in multiple length, the length of the delivered metal material must be an integer multiple (plus saw cut) of the length (called single length) specified by the purchaser in the order contract. For example, if the purchaser requires a single-length length of 2m in the order contract, then the length when cut into double length is 4m, а когато се нарязва на тройна дължина е 6m, а една или две разфасовки на триони се добавят съответно, а разрезът с трион се определя в стандарта .
4. Спекулация с двойна променлива дължина
"Double variable length of steel pipe" may mean that the length of the steel pipe is twice the length of a potential single length, but the specific single length is not fixed, and the final length of the steel pipe fluctuates within a specified length range, rather than a fixed value. For example, in some cases, this potential single length may vary within a certain range, and its double length will also present an "uncertain" state, as long as the final length meets a certain specified range, it може да бъде доставен .
5. Свързани примери за справка
For example, X52 line pipe has the expression of single variable length/double variable length, and its length range is 5m - 14m, 5.8m, 6m, 10m - 12m, 12m or as required by the customer. The double indefinite length here may be similar to the above speculation. In a wider range of Дължини, може да има спецификация на дължината, която е два пъти по -голяма от тази на една дължина, но тя не е фиксирана.
