... is GYTZS.Fiber number: up to 144 cores Color code of optical fiber: blue, orange, green, brown, slate, white, red, black, ... Cable filling compound PSP PE sheath Central strength memberloose tube, optical fiber, filling gel, flooding compound and CSM-steel wire ... trunk line, CATV and computer networks system Structures:loose tube, optical fiber, filling gel, flooding compound and CSM-steel wire ...