1.C steel channel 2.50x37x4.5mm-----400x200x10mm 3.Material: Q235,Q345,SS400 Commodity: C steel channelMaterial: Q195,Q235,Q345,SS400Standard: GB,DIN,ASTM,JIS and so onSizeHWTKg/mCompany5#50374.55.438HC Steel6.3#63404.86.634HC Steel8#80435.08.045HC Steel10#100485.310.007HC Steel12#120535.512.059HC Steel12.6#126535.512.318HC Steel14#a140586.014.535HC Steel14#b14060816.733HC Steel16#a160636.517. ...