Silicon Electric Steel 35w230, 35w250, 35w270, 35w300 The products boast high specifications,stable performance,strong magnetic ... /CRNGO steel Standard: AISI, ASTM, GB Brand name: 35w230, 35w250, 35w270, 35w300, 35w360, 35w400,35w440, 50w230,50w250,50w270, 50w290, 50w310, 50w350 ... essential material used in motor Silicon Electric Steel 35w230, 35w250, 35w270, 35w300