C steel channel 1.Delivery 20Days 2.50x37x4.5mm-400x200x10mm 3.Material: Q235,Q345,SS400 4.Standard: GB,DIN,ASTM,JIS c shaped steel channels C steel channel1.Delivery 20Days2.50x37x4.5mm-400x200x10mm3.Material: Q235,Q345,SS4004.Standard: GB,DIN,ASTM,JIS SizeHWTKg/mCompany5#50374.55.438HC Steel6.3#63404.86.634HC Steel8#80435.08.045HC Steel10#100485.310.007HC Steel12#120535.512.059HC Steel12.6# ...