ISTON A.S. Hadimkoy Fabrikasi — İstanbul, Turkey
| Certificate Number | 416-CSC21-2023 | Date of certification | Nov 7, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 416-CSC21-2023 | Date of certification | Nov 7, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 1387-CSC21-2024 | Date of certification | Jun 14, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 524-CSC21-2023 | Date of certification | Nov 7, 2023 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 525-CSC21-2023 | Date of certification | Jan 28, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Certificate | |||
| Certificate Number | 1358-CSC21-2023 | Date of certification | Jun 30, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 1357-CSC21-2023 | Date of certification | Jun 30, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 1434-CSC21-2024 | Date of certification | Jun 30, 2024 |
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| Certificate Type | Concrete, Ready mixed | Version | 2.1 Türkçe |
| Client website — Certificate | |||
| Certificate Number | 1854-CSC24-2025 | Date of certification | Nov 3, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 475-CSC24-2025 | Date of certification | Nov 3, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 1930-CSC24-2025 | Date of certification | Sep 12, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 1927-CSC24-2025 | Date of certification | Sep 12, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 1928-CSC24-2025 | Date of certification | Sep 12, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 1929-CSC24-2025 | Date of certification | Sep 12, 2025 |
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| Certificate Type | Concrete, Ready mixed | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 1716-CSC24-2024 | Date of certification | Dec 15, 2024 |
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| Certificate Type | Concrete, Precast | Version | 3.0 Deutsch |
| Client website — Certificate | |||
| Certificate Number | 814-CSC24-2025 | Date of certification | Jun 1, 2025 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 813-CSC24-2025 | Date of certification | Jun 1, 2025 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Client website — Certificate | |||
| Certificate Number | 719-CSC24-2024 | Date of certification | Nov 19, 2024 |
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| Certificate Type | Concrete, Precast | Version | 3.0 English |
| Certificate | |||
| Certificate Number | 956-CSC21-2022 | Date of certification | Dec 19, 2022 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1019-CSC21-2023 | Date of certification | May 15, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Certificate | |||
| Certificate Number | 1009-CSC21-2023 | Date of certification | Oct 4, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1007-CSC21-2023 | Date of certification | Oct 4, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1005-CSC21-2023 | Date of certification | May 5, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1006-CSC21-2023 | Date of certification | Oct 4, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1008-CSC21-2023 | Date of certification | May 5, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||
| Certificate Number | 1002-CSC21-2023 | Date of certification | Oct 4, 2023 |
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| Certificate Type | Concrete, Precast | Version | 2.1 Vlaams (BE) |
| Client website — Certificate | |||