UDC 669.15 .044.31.4 GB3650-83 The general rules for inspection,packing,marking, storing rtansportation and certification of ferroalloy 1 1.1 1.2 45 1.3 1.4 1.5 5 5mm 1.6 1 1 1983-05-02 1984-03-01 GB/T 13247-91 1 1.7 GB 1.1-81 2 2.1 2 2 2.2 2.3 100kg 500kg 3 3.1 3.2 3.3 4 3 3 a b c d a b c d GB/T 13247-91 5 a b c d e f g YB 586-65
