UNE-EN 10217-3:2019
壓力用途焊接鋼管 交貨技術條件 第3部分:具有規定室溫、高溫和低溫性能的電焊和埋弧焊合金細晶粒鋼管
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 3: Electric welded and submerged arc welded alloy fine grain steel tubes with specified room, elevated and low temperature properties