... buyer's request. 0.40mm, 0.50,0.60,0.64, 0.70,0.74, 0.90,1.02mm.2.Insulation ... buyer's cable strucutre, too1pair telephone cableSpecifications: BC: Bare Copper CCS: Copper Clad Steel1) 1P*0.4/0.6/0.63mmBC ... conductor+0.95mmPE insulation+3.8mmPVC jacket2)18AWG/20AWG CCS/BC Conductor +PVC/PE Insulation 25P*0.4/0.6 ...