... :0.9,2.0,3.0mm etc 3.Core:1,2,4,6,12,etc We are factory mainly ... .0mm,2.4mm,2.8mm,3.0mm Technical Parameters : 1.Insertion Loss ( Single - Mode : PC ≤ 0.2 db ,APC ≤ 0.3 ... db ) . 2. Return Loss ( Single - Mode : PC ≥ 50 db , APC ≥ 50 db )3.Working Temperature ... 1550nm5.The plug to dial the number of : ≥ 1 , 000 times Applications :1.Data transfer . 2.Telecommunication network . 3.The test ...