DIN EN 10208-2
用于可燃流体输送的钢管 - 技术交货条件 - 第2部分:B类要求等级钢管
Steel pipes for combustible fluids - Technical delivery conditions - Part 2: Pipes of requirement class B
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Steel pipes for combustible fluids - Technical delivery conditions - Part 2: Pipes of requirement class B
Steel pipes for pipelines for combustible fluids - Technical delivery conditions - Part 1: Pipes of requirement class A