0003Hong Kong and China Gas Company LimitedHong Kong and China Gas Company Limited香港中華煤氣0003Hong Kong and China Gas Company Limitedhongkongandchinagascompanylimited香港中華煤氣香港中华煤氣gangzhonghuagzhtowngashong kong china gashongkongchinagas000033HK & CHINA GAShk&chinagasxiang gang zhong hua mei qixianggangzhonghuameiqixgzhmqt