牌號(hào) | L290NB |
1.0484 | |
對(duì)應(yīng)標(biāo)準(zhǔn) | NF EN 10253-2-2007
對(duì)焊管件-第2部分:具有特殊檢驗(yàn)要求的非合金和鐵素體合金鋼 Butt-welding pipe fittings- Part 2: Non alloy and ferritic alloy steels with specific inspection requirements |
歸類 | 合金鋼 |