人妻激情网熟妇丰满的阴部|寂寞少妇野外野战正片|娇妻被老外性调教|高潮露脸|日韩av电影综合在线|侵犯熟睡在线观看|口爆大奶子|日本亚洲第二区|91精品久久人人妻|日本性三级电影,俊美娇妻被淫,清纯校花被侵犯小说,玩弄新婚人妻小倩

Shandong Zhongkan Machinery Co., Ltd.

01

       Shandong Zhongkan Machinery Co., Ltd. is a full-industry chain manufacturer integrating research and development, manufacturing of special geological exploration equipment, technical services and engineering construction. It was founded in Juxian County, Shandong Province, the hometown of China's drilling in 2017. The company has successively passed the "ISO9001 international quality system certification&quo...

Culture

02

Corporate mission: gather professional forces and build exploration dreams together。

Core values: pragmatic and innovative, honest business, keep mission in mind, and never forget the original intention,。

Enterprise spirit: innovation, stability, openness and win-win,。

Enterprise vision: to become a leading brand of advanced exploration technology overall solution,。

...