... alarm cable 2*0.75mm2 unshielded 1) Conductor: BC. 2) Cores: 2cores 0.75mm2 3) Dielectric:Flame-retardant PVC Fire alarm cable 2*0.75mm2 ... Bare Copper ;TC: Tinned Copper ;2, Structure 1) Cent Conductor: TC, BC. 2) Cores: 2cores 0.75mm2 3) Dielectric: Flame-retardantPVC4) ... to the switchboard. 6,Packing:1)Packing Lengths: 305m/roll;2) Inner packing:Roll, Wooden reel, plastic reel;3) Outer packing: ...