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Included: | Manufactured in carbon steel S-235-JR according UNE-EN 10025. Includes construction certificate and hidraulic test. |
External protection: | According to standards UNE 21316 (Parts 1 and 2) (600 µ / 15 kv of drilling voltage with direct current) for buried tanks and UNE 112017 (80 µ / 360 h of exit fog test), for air tanks. |