DIN EN 10216-4
压力用途无缝钢管 - 技术交货条件 - 第4部分:具有规定低温特性的非合金钢和合金钢管
Seamless steel tubes for pressure purposes – Technical delivery conditions Part 4: Non-alloy and alloy steel tubes with specified low temperature properties
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Seamless steel tubes for pressure purposes – Technical delivery conditions Part 4: Non-alloy and alloy steel tubes with specified low temperature properties