产品概述 结构特征 characteristic of construction 松套管 Loose tube 金属中心强件Metal central strength member 缆芯填充油膏 Filling compound 双面涂塑轧纹钢带粘结PE外护套 Corrugated steel wire coated with PE/co-polymer on bo......产品概述 结构特征 characteristic of construction 松套管 Loose tube 金属中心强件Metal central strength member 缆芯填充油膏 Filling compound 双面涂塑轧纹钢带粘结PE外护套 Corrugated steel wire coated with PE/co-polymer on both sides bonded to the Inner surface of PE sheath