... standards3) Raw Materials (cold rolled grain non oriented silicon steel coils): a) Bao steel: B50A1000, B50A800, B50A600, B50A470, B35A550, B35A440b) ... as Chinese steel.4) Applicable to all kinds of iron cores for power transformers and ballasts We are supplier of ... BLACK&DECKER,PHILIPS,SMP,BOSCH and other global electric motor manufacturer. We are strategic partner of Chinese qualify steel ...