Multi-purpose distribution cable use several 900um flame-retardant tight buffer fiber as optical communication medium,the tight buffer fiber wrapped with a layer of aramid yarn as strength member units and then is completed with a PVC or LSZH (Low smoke,Zero halogen,Flame-retardant)The tight buffer fibre is manufactured by sheathing the fibre with an appropriate buffer material. The diameter of Φ600μm or Φ900μm could be produced. The selection of top-quality fibre, specific production equipment and accurately designed tools ensure a good performance of the product