need very good offer for the 440C ( GB 9Cr18Mo ) stainless steel plates, sizes as the following: thickness 5.0*width 410mm 6.0*505mm 8.0*505mm 10.0*505mm 12.0*505mm 20.0*410mm 25.0*505mm 30.0*505mm the tolerance for thickness below 15mm is -0 +0.8mm and thickness above 20mm, it's -0 +1.5mm