... Material :HRB335,HRB400,GRADE40,GRADE60,460B Standard :GB/1499.2-2007,AMSTNameDefromed steel barSpecification 10~32Material HRB335,HRB400,GRADE40,GRADE60, 460BStandard ... GB/1499.2-2007, AMST A516, BS4449ApplicationApplicationVarious types of reinforced concrete building industry structureAdvantagesexact ...