24 SINGLE MODE (OPGW) GROUNDWIRE COMPOSITE FIBRE OPTICAL CABLE;CENTRAL CORE,WITHIN A PROTECTIVE TUBE;CABLE DIA 14.48 MM;LEFT HAND LAY;DRUM SIZE 3000 M, DRUM WEIGHT 1619 KG,DRUM SIZE 4000 M,DRUM WEIGHT 2122 KG,DRUM SIZE 5000 M,DRUM WEIGHT 2625 KG,DRUM SIZE 6000 M,DRUM WEIGHT 3118 KG;