Nerb India Private Limited · Bertron Equipments Private Limited · Freistrom Engineers Private Limited · Filtron Engineers Limited · Pune Precicast Private Limited · Fristam Pumps (India) Pvt Ltd · Schmidt Bretten (India) Private Limited · Real Centrifuges Asia Private Limited · U57909 Mh1982 Ptc026929 · U29299 Mh1989 Ptc053129 · U31909 Mh1987 Ptc042199