1)Meaning: 7 strands each consisting of 7single wires. All wires in all strands have the same or similar dia. FC is fiber core. 
2)Dia. Ranges: 0.8 mm 
3)Spec. EN12385-4 (DIN 3055) 
4)Tensile Strength: 1570N/mm2 ~ 1770N/mm2 
5)Lay directon: R. H. O. L. Or L. H. O. L. 
6)Grade: AISI 316, AISI 304 
7)Packing: 500mtrs ~ 2, 000mtrs per reel 
8)Characteristics: Less hard, mostly used.