... welded H-section , hot-rolled H-section, channel, steel column, steel beam),standard frames, secondary framing, roof & wall materials, ... welded H-section , hot-rolled H-section, channel, steel column, steel beam),standard frames, secondary framing, roof & wall materials, ... , Tarch, Tekla Structures(Xsteel)V12.0.etcMission:Sunnyda Corporation aims to partner with our customers in achieving unsurpassed ...