亚洲特片国产精品_国产日韩一区二区三区在线视频_欧美日韩在线观看视频_高清色惰www日本午夜_在线视频亚洲久热_成年h动漫在线看网站免_视频一区二区三区人妻系列_国产成人观看免费_精品长泽梓在线播放视频_国产中文字幕av第一页

Tianjin Baili Zhanfa Group Co., Ltd. is located in Xidi Tou Industrial Zone, Beichen District, Tianjin, with a registered capital of 201 million, covering an area of 122000. Is the largest research and development, manufacturing, testing and service as one of the large-scale oil equipment and high-end valve industry base in northern China. Baili Zhanfa has long served the national energy construction cause, and is the core supplier of large petrochemical groups such as PetroChina, Sinopec, CNOOC and Shenhua Group. The company has obtained the qualification of Tianjin high-tech enterprises and Tianjin enterprise technology center......