Cheap Chinese Shed Steel Structural - Buy Steel Structure for building decoration s355jr building weight
We QINGDAO AOLIFENG STRUCTURE MATERIAL CO.,LTD can design ,fabricate and install all kinds of steel structure buildings. Steel material Q345B=S355JR,SM490,ASTM A572; Q235B=S235JR,SS400,ASTM A36 . Carbon structural steel Q195, Q215, Q235, Q255, Q275, etc. High-strength low-alloy structural steel
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din 1629 seamless honed tubes of non alloys steel