Nama lain : Steel Tower (Menara Baja) 275kV DC 2xZebra tipe AA (Bukaka)
As the pioneer in manufacturing and construction of transmission line of high and extra high voltage in Indonesia, the Company produced its first transmission line with the capacity of 70 kV and 150 kV in 1981, and a double circuit tower with the capacity of 500 kV in 1984. Until 2010, the Company completed a number of turn-key project packages with capacities ranging from 70 kV to 500 kV for PT Perusahaan Listrik Negara (Persero). Moreover, the Company is the only company in Southeast Asia that has testing tower facility up to 500 kV capacity.
The Company also contributed in turn-key project of telecommunication tower and shelter construction to serve many telco operators and provider in Indonesia, both curve and pipe type of tower, as well as construction of turn-key project for a broadcast tower of 220 m height in Surabaya and Semarang. This business unit has served many big companies such as PT SMART, PT Telkom Indonesia (Persero) Tbk, Siemens, PT XL Axiata Tbk, PT Indosat Tbk, PT Tower Bersama Infrastruktur Tbk, PT Daya Mitra and PT Protelindo.