| TÜV-Zertifikat Umstempelbescheinigung (German) |
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| DQS: DIN EN ISO 9001:2015 (German) |
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| DQS: DIN EN ISO 9001:2015 (English) |
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| IQNet/DQS: DIN EN ISO 9001:2015 (English) |
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| DVGW (German Technical and Scientific Association for Gas and Water) test mark: Fig. 28 |
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| DVGW (German Technical and Scientific Association for Gas and Water) test mark: Fig. 60 |
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| DVGW (German Technical and Scientific Association for Gas and Water) test mark: Fig. 70/71 |
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| Type examination for cutting ring screw connections according to DIN EN ISO 8434-1/DIN 2353 |
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| Type examination for hose fittings |
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