Construction 1. Colored fiber Coated outside diameter：125.0±0.1um Optical fiber diameter：242±7um UV color fiber: Standard chromatogram -Blue,Orange,Green,Brown,Gray/Slate,White,Red,Black,Yellow,Violet,Rose/Pink,Aqua 2. Tube filling compound(Gel) 3. PBT loose tube 4. Steel wire Central strength member 5. Core filling compound 6.Aluminum Polyethylene Laminate 7.Black PE out jacket Outside diameter： 9.0±0.2mm   Parameters of fiber Version:0.9 StartHTML:0000000105 EndHTML:0000001124 StartFragment:0000000141 EndFragment:0000001084 Optical fiber type Unit SM G652 SM G652D SM G657A1 MM 50/125 MM 62.5/125 Waveband nm 1310/1550 1310/1550 1310/1550 850/1300 850/1300 Attenuation dB/km 0.36/0.23 0.36/0.23 0.36/0.23 3.0/1.0 3.0/1.0   Product parameters Appearance and packaging 1. No damage on the surface; no trachoma. 2. Wooden tray packaging; wood whole seal packaging 3. Segment length: no less than 1000M. The segment length of each tray of the same batch shall be similar as much as possible. Other lengths can be agreed upon through consultation. 4. Report certificate: It includes optical cable inspection number, optical cable type, core number, optical fiber type, length, etc