"Made in China" silent drilling rig sacred Uganda
Recently, the 1500HP low -emission quiet automated drilling rigs independently developed by manufacturers such as the Central Plains Petroleum Engineering Company, Sichuan Honghua Group, Zhongyuan Dah
Tanabata has become closer and closer to the rise of diamond consumption rise?
Cover News Profile reporter Tan Yuqing'Diamonds are long and long, and the phrase ...
Blind "upgrade" to serve the people's livelihood "heating"
The construction staff dug out the masonry on the street blind road, tune the maso...