Metals–Iron–Steel Requests

I am looking for a flat iron with Thickness 3mm and 4 mm

Could give me praice for this goods. listed below

Flat iron 20x4. 27 ton Flat iron 16x5 27 ton

i have wrought iron work so I need to import prossing materials like blind square bar 12*12,10*10,6*6,4*4 and flat iron 40*5,15*3,12,4 which have lower carbon. so please send detail specifications with priece. Best regard