| 牌號(hào) | A320 L1 | 
|---|---|
| 對(duì)應(yīng)標(biāo)準(zhǔn) | ASTM  A320/A320M-2018 低溫用合金鋼螺栓材料標(biāo)準(zhǔn)規(guī)范 Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service | 
| 歸類 | 合金鋼 | 
| 標(biāo)簽 | 鐵素體鋼 | 
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