Steel cold and hot rolled strip by standard ASTM A366,A284,A414,BS1449,DIN1614,JIS G3141 ... of supplying steel cold rolled and hot rolled strip by standard GB/T710,711,ASTM A366,A284,A414,A285, ... ,A284,A414,A285,BS1449,DIN1614,JIS G3141,G31312.Grade:By ASTM:1005,1006,1008,1010,1015,1020,1025,1030, ... ,Ck45,Ck50,60,67,15Mn3,21Mn4,30Mn4,36Mn4,40Mn4By BS:040A10,12,040A12,080A15,20,070M26,080M30,36,40, ...