久久亚洲精品成人无码网站_精品一区二区三区自拍图片_九九99精品国产精品欧洲_91久久综合亚洲

The company belongs to China Datang Corporation (one of the five largest power generation groups in China and a wholly state-owned company directly managed by the central government). The company uses Jingda products: smart water meters. The company started using the products in 2005.