The company is specialized in the design, manufacture and marketing of Helical Hardware Fittings for ADSS/OPGW/OPPC cable, Conductor, Grounding wire, Stay wire and railway Overhead Line System; it is also worked on the design /installation /consultation /maintenance for. The company is specialized in the design, manufacture and marketing of Helical Hardware Fittings for ADSS/OPGW/OPPC cable, Conductor, Grounding wire, Stay wire and railway Overhead Line System; it is also worked on the design /installation /consultation /maintenance for. Shenzhen SDGI Photoelectricity Technologies Co., Ltd (hereinafter referred as Company) is a High and New Tech Enterprise, and is one of the earliest manufacturer with manufacturing, researching and developing of helical line products. The company is specialized in the design, manufacture and. HENGTONG has formed a complete industrial cluster from copper/aluminum rod to OPGW,OPPC, Overhead Bare Conductors,LV, MV,HV,EHV, submarine cables and composite cables. All products are widely used in over10 fields, such as the smart grid, new energy, and smart home. umber of over-head line applications for the transmission of information. Use Code: FREESHIP Details Lifetime Warranty on Cables and Non Electronics Products. Copyright © 2002-2026 SF Cable, Inc. ™ Have any questions? Talk with us. PBT Loose Tube Optical Ground Wire (OPGW) is an optical fiber communication system for power lines, mainly composed of single-layer or double-layer aluminum-clad steel wire (ACS) or mixed winding of ACS wire and aluminum alloy wire. OPGW with PBT Aluminum Tube/PBT Loose Buffer Tube Type OPGW is an.