... ASTM A792, JIS G3321 JIS G3317 3.Grade 33-grade 80.;SGLCC SGLCD SGLC400-SGLC570... 4. ... GB/T 1275…… JIS G3141 SPCC, GB……GRADESS grade 33-80; SGCC, SGCH, SGCD1-SGCD3, SGC340-SGC570, ... SGCC, DX51D….Grade 33-grade 80.;SGLCC SGLCD SGLCDD SGLC400-SGLC570;SZACC, SZACH ... CGCC, CGCH ,CGC340-CGC570, CGCD1-CGCD3; Grade Grade 33-grade80.;SGLCC SGLCD SGLCDD SGLC400-SGLC570;SZACC, SZACH, ...