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Structural carbon steel A36 q235/q345/ss400 hot rolled jis h-beam i beam steel/mill test certificate of q345b h beam Prime quality ASTM/ JIS / GB H Steel Beam Q235B,Q345B,SS400,A36 Q345 Q345B Hot Rolled steel H beam Universal Beam for Constructionsp.infoh steel h channel with grade ss400 ss490 from shanghai of structural JIS SS400 H profile steel MS steel plate .Carbon hot rolled prime structural steel h beam with grade .Carbon hot rolled prime structural steel h beam with grade JIS SS400 SS490 carbon steel h beam for construction material,US $ 350 450 / Ton,Shanghai,China,SS400/A36/SS355JR/ST 37 /ST 52,Hot Rolled.