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Guangzhou B&G Building Materials Tech Co.,Ltd is a modern enterprise specialized in designing manufacturing and marketing of metal roofing system,metal facade system,snow-melting system,and solar energy photovoltaic system.It is invested by Hong Kong Litong Int'l Holdings (Group) Co.,Ltd with a dominative share holding. B&G metal roofing system possesses highly cost-effective and economical performance, with the functions of water-proof, sound-absorption, heat-insulation. It is widely used in the gymnasium, exhibition hall, terminal and other large-scale public construction projects. Hong Kong Litong Int'l Holdings (Group) Co., Ltd. integrates the industry, trade, investment, import and export. It owned a number of world-class high-speed coating and anodized aluminum roll production line, Litong is one of the largest aluminum processing and aluminum coating enterprise in China. The annual turnout of both aluminum processing and alu minum color coated products is 50,000 tons respectively. All Group-affiliated companies were awarded the "High-tech Enterprise", "National Building Materials Industry Well-known Brand", "Market Recognized Brand", "Advanced Demonstration Enterprise of Quality and Sincerity ", and other honors certificates. All its subsidiaries passed the certification of ISO9001 and ISO14001.