what is hot rolled gb t 4171 q500nh corten plate


what is grade gb t 4171 q415nh weather corten plate

what is grade gb t 4171 q415nh weather corten plate

GB/T 4171 atmospheric corrosion resisting structural steel is produced in cold-rolled and hot rolled -rolled steel plates, sheets and sections. Due to the good quality of atmospheric .. 50 Jinshui Road, Henan Province, China 0086-13569929107sp.info