Our products list is as following:
A Hot dipped gal. steel tubes
1) size:1/8" 1/4" 1 1/4"  1 1/2"  3/4" 3/8"  2", 4" 5"  6"  8"10"  12" 14"  
2) could be threaded and socketed
B pre-galvanized steel tube,
1) size: 15*15mm to 60*600mm,
2) zinc coated 120g/m2
C Round tube:
1) diameter 21.3-273mm
2) thickness: 0.5-25mm
3) material ,GB Q195-235-345 ASTM A36 A53
D square tube:
1) size: 10*10mm to 400*400mm,
2) thickness: 0.5-25mm
3) material: GB Q195-235-345 ASTM A36 A53
E Rectangular steel tube:
1) size: 8*16mm to 200*400mm
2) thickness: 0.5-25mm
3) material: GB Q195-235-345 ASTM A36 A53
F Steel angle bar
1)size :19mm to 200 ,19*19 20*20 25*25 27*27 30*30 35*35 40*40 45*45 48*48 50*50 60*60?????????
2 )material ,GB Q195-235-345 Q420 ASTM A36 A53 SS400
G Steel flat bar
1)size: thickness:1.2mm to  25mm        width:12mm to  650mm  
2 )material ,GB Q195-235-345 ASTM A36 JISSS400
H Steel channel bar ,U channel ,C channel
1)size :50 to 300 ,50*37*4.5 65*40*4.8 80*43*5 75*50*5 100*48*5.3 100*50*4.2 125*65?????.
Trade terms ?????/C or T/T
Delivery Time?????0-35days,depending on Qty.
Packing: 100% export wrapped in waterproof wrapping  or  bundel
If you are interested in them, be free to contact me.
Then I will quote you our best price for your reference ASAP.
Looking forward to your further information.
Best wishes!