Bir üst Kategori : 7307 - Demir veya çelikten boru bağlantı parçaları (rakorlar, dirsekler ve, manşonlar gibi) :
| Firma Adı * | Şehir / Bölge | Ülke |
|---|---|---|
| О************************************************ | Russian Federation | Rusya |
| P**************************** | Pakistan | Pakistan |
| О********* | RU - Russia | Rusya |
| О*********** | Russia | Rusya |
| T****************************** | Thailand | Tayland |
| C********************************* | Viet Nam | Vietnam |
| E********************************* | United Kingdom | İngiltere |
| L********************* | India | Hindistan |
| I********************** | Nigeria | Nijerya |
| H********************************* | Peru | Peru |
| З******************* | Russia | Rusya |
| D************************ | Tanzania | Tanzanya |
| ا************************ | Egypt | Mısır |
| S****************** | Kazakhstan | Kazakistan |
| T**************** | MW - Malawi | Malavi |
| T**************************** | Nicaragua | Nikaragua |
| C********************* | Pakistan | Pakistan |
| О******************* | Челябинская область | Rusya |
| T******************* | Tanzania | Tanzanya |
| G**************** | United States | Amerika Birleşik Devletleri |
| C************************ | Vietnam | Vietnam |