huaruitong industry trade co.,ltd established in year 2001by a group of friends from the biggest state_owned drilling company for more than 15 years China. So although this is young company, all our members business have rich experience . We know Chinese ...

We are a professional tungsten alloy products suppier in China.With over 10 years of experience this field, we have rich expertise to produce high quality products, with innovative designs being introduced our clients regularly. Clients\' OEM and ODM always ...

Baotou Liande Oil and Mechanical Co., Ltd is built in 2004, we mainly produce different kinds of sucker rod , pony sinker bars drive rod, polished couplings subcouplings, guides.Now have 136 workers the anuual productivity more than 5 million meters . are one ...