STEEL BILLET
STEEL BILLETS GRADE : RE-BAR GRADE : ASTM A 615 (GRADE 40, 60), DIN 488, BS 4449 (GR 250, 460), JIS G 3112 (SD30, 35, 40), GOST 5781-82 (35GS, 25G2S), GB 1499-98 (20MNSI, 25MNSI) MERCHANT BAR GRADE : ASTM A36, JIS G 3101, DIN 17100 ST 37-2, GOST ...