無縫鋼管以外徑*壁厚來表述,常用外徑有25,32,38,42,45,50,51,54,57,60,63.5,68,70,73,76,80,83,89,95,102,108,114,121,127,133,140,146,152,159,168,180,194,203,219,245,273,325,351,377,402,426,480,530,630,720等。
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2015年08月31日17:10
無縫鋼管以外徑*壁厚來表述,常用外徑有25,32,38,42,45,50,51,54,57,60,63.5,68,70,73,76,80,83,89,95,102,108,114,121,127,133,140,146,152,159,168,180,194,203,219,245,273,325,351,377,402,426,480,530,630,720等。
熱軋無縫鋼管質(zhì)量檢查操作規(guī)程熱軋無縫鋼管和普通焊接鋼管在理論重量上的區(qū)別?熱軋無縫鋼管的絕對(duì)粗糙度冷拔無縫鋼管與熱軋無縫鋼管的區(qū)別有哪些?杭州東正鋼管有限公司的無縫鋼管質(zhì)量怎么樣?