Seed ManyToMany Relationship pivot table with custom data

These are my tables:

companies table:

| id | name    |
|----|---------|
| 1  | Apple   |
| 2  | Samsung |
| 3  | Huawei  |

countries table:

| id | name          |
|----|---------------|
| 1  | United States |
| 2  | Russia        |
| 3  | China         |

company_country table:

| company_id | country_id | barcode    |
|------------|------------|------------|
| 1          | 1          | 7y87weyf   |
| 1          | 2          | j09akx09a  |
| 1          | 3          | jhbcx87tz8 |
| 2          | 1          | 67z5cxz8   |
| 2          | 2          | t8ads86t   |
| 3          | 3          | ucyhcz97   |

Relationships:

Country Model:

public function companies()
{
     return $this->belongsToMany(Company::class);
}

Company Model:

public function countries()
{
     return $this->belongsToMany(Country::class);
}

Each company has its own barcode based on specific country.

I want to seed company_country pivot table with my own prepared static data. So I don't need factory.

How can I do that?