Standard specification for hot - formed welded and seamless carbon steel structural tubing 熱成型焊接與無(wú)縫碳素鋼結(jié)構(gòu)管標(biāo)準(zhǔn)規(guī)范
Aerospace ; seamless structural tubes in steel and nickel alloys ; technical specification 航空航天.鋼和鎳合金無(wú)縫結(jié)構(gòu)管材.技術(shù)規(guī)范
Standard specification for hot - formed welded and seamless high - strength low - alloy structural tubing 熱塑焊接和無(wú)縫高強(qiáng)度低合金結(jié)構(gòu)鋼管的標(biāo)準(zhǔn)規(guī)范
Specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes 圓鋼與型鋼的冷變形焊接與無(wú)縫碳素鋼結(jié)構(gòu)管規(guī)范
Standard specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes 圓形與異型冷成型焊接與無(wú)縫碳素鋼結(jié)構(gòu)管標(biāo)準(zhǔn)規(guī)范