Master coil and heat numbers for each strip in the string O&G

[Smokey]

Добрые люди подскажите что может означать "master coil and heat numbers". Контекст ниже. Описание сведений предоставляемых по НКТ.

CT Pipe String(s) Manufacturing Quality Records
The manufacturer’s quality records for each CT Pipe String shall include the following information:

1. Manufacturer’s name
2. Date and location of manufacture
3. Manufacturer’s serial number or other inventory control number
4. Statement of conformity to the manufacturer’s product specifications
5. OD of each section in the string
6. Total length of the string
7. Length of each wall thickness section in the string
8. Master coil and heat numbers for each strip in the string
9. Chemical analysis of each strip in the string
10. Mechanical properties of each master coil in the string, including:

[carp]

https://www.thefabricator.com/glossary/heat-number
https://www.thefabricator.com/glossary/master-coil
вкуривайте)

[TSB_77]

вы это, карп, правильно меркуете