AISC-1210H-3R3N-T AISC-1210H-3R9N-T AISC-1210H-470K-T AISC-1210H-471K-T AISC-1210H-4R7N-T AISC-1210H-560K-T AISC-1210H-561K-T AISC-1210H-5R6N-T AISC-1210H-680K-T AISC-1210H-681K-T