Pickled B420CL thickness allowable deviation should be consistent with Q / BQB 301 high precision (PT.B) provisions,B420CL good cold formability for automotive roll forming wheel and spoke network.

Pickled B420L steel is mainly used in automobile manufacturing, electrical products, rolling stock, aerospace, precision instruments, such as canned food.

Pickled B510DL used in automobile manufacturing. Carbon and micro-alloy steel hot rolling steel with good cold formability of the steel sheet and strip and thus longitudinal vertical cross-section of a cut, referred to steel sheet and strip.