成人久久久-成人久久久观看免费毛片-成人久久久精品乱码一区二区三区-成人久久免费视频-成人久久视频

Langfang Qiutian geo-engineering machinery co., LTD. is of reconstruction from Langfang Bealong mechanical and electric equipment co., LTD., located at Langfang city, the "bright pearl city" of Beijing & Tianjin corridor, with beautiful environment, convenient traffic facilities and distinct regional advantages, 50 Km distance both to capital Beijing & Tianjin.  
Our company is professional at developing, producing and marketing diversified anchor drill rigs. Based on learning and deep understanding foreign advanced technology, we developed independently BHD series of multifunctional hydraulic anchor drill rigs. Among them, our BHD215 & BHD115 anchor drill rigs have been successfully put on market, they find usage at anchor and micropile engineering field for construction pit, subway, tunnel, railway, highway and disaster relief projects with higher productivity.