HEB200欧标H型钢规格欧标H型钢材质S355JR,S355J0,S355J2欧标H型钢标准EN10034欧标H型钢HEA100欧标H型钢HEB100欧标H型钢HEA120欧标H型钢HEB120欧标H型钢HEA140欧标H型钢HEB140欧标H型钢HEA160欧标H型钢HEB160欧标H型钢HEA180欧标H型钢HEB180欧标H型钢HEA200欧标H型钢HEB200欧标H型钢HEA220欧标H型钢HEB220欧标H型钢HEA240欧标H型钢HEB240)