supply of male and female arm assembly and rotating contact head for maintenance of 245 kv east land make isolator at 220 kv s/s barahuwa under etd-ii , gorakhpur supply of male and female arm assembly and rotating contact head for maintenance of 245 kv east land make isolator at 220 kv s/s barahuwa under etd-ii , gorakhpur , supply of male arm assembly with male contact complete suitable for 245kv eastland make isolator ( as per sample ) , supply of female arm assembly with female contact complete suitable for 245kv eastland make isolator ( as per sample ) , supply of rotating contact head complete suitable for 245kv eastland make isolator ( as per sample )