日韩超碰在线I 国产va饥渴难耐女保洁员在线观看I 五月综合网站I 免费av看片I av无限看I 日韩免费高清在线I 久久久久久久久免费

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.