6225| 13
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45號(hào)鋼調(diào)質(zhì)后,,焊接于輥?zhàn)虞S頭倆端(20號(hào)鋼管),,還需不需要退火處理 |
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點(diǎn)評(píng)
這種軸頭很少用45#,因?yàn)?5#焊接性能不好,!
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