Sri Balaji Group of Companies. Manufacturer and exporter of LPG cylinders, valves and regulators based out of Chennai, INDIA. SBG ISO9002 quality certified facility. Sri Balaji Group of Companies. Manufacturer and exporter of LPG cylinders, valves and regulators. Chennai, India. SBG. Sri Balaji Group of Companies. Manufacturer and exporter of LPG cylinders, valves and regulators, Chennai, India. SBG