????????????????? ????????? EN10210-1:2006 EN10210-2:2006?? EN10219-1:2006 EN10219-2:2006??
??????Χ?? S235JRH S275JOH S275J2H S355JOH S355J2H
????磨?????80?L×80??500?L×500?L????????θ???
???4?L??16?L????????θ???
???????????????绰??022-86896788 13642174808