PT Steel Pipe Industry of Indonesia Tbk is an Indonesia-based company primarily engaged in manufacturing steel pipes. Its products include black pipes, water pipes, mechanical pipes, furniture pipes, API pipes, steel poles, spiral pipes as well as industrial and ornament stainless steel pipes. The welding techniques it implements in its manufacturing plants include high frequency welding (HFW), spiral submerged arc welding (SSAW) and tungsten inert gas (TIG). Its manufacturing facilities are located in Surabaya, Pasuruan, Karawang and Sidoarjo, Indonesia. The Company markets its carbon steel pipes and stainless steel pipes under the brand names Spindo and Tetsura, respectively.