standard:GB,IEC,AS -Approval:CQC,ABS,GL ,QMS -20ys experience -customers:ABB,Intel,State grid Purpose:mainly used for doem- ... 15 times of outer diameter for other types.Where to use: served as main signal in vertical or slanted shafts/in ... cut.fire resistance low smoke shipboard communication cables,signal cable for motors , low voltage signal cable fire resistance low smoke shipboard communication ...