DIN 30672-2000 持续工作温度不超过50℃的地下和水下管道外部有机防腐涂层.带材和可收缩材料
External organic coatings for the corrosion protection of buried and immersed pipelines for continuous operating temperatures up to 50 °C - Tapes and shrinkable materials
The document applies to external organic coatings for the corrosion protection of buried and immersed pipelines for continuous operating temperatures up to 50 ? especially tapes and shrinkable material.