Dongying dayang petroleum equipment co.,ltd

DONGYING DAYANG PETROLEUM EQUIPMENT CO.,LTD ia a modernized industry,conbined manufacturing and development of seamless steel pipes and drilling equipment,drilling tools,drilling rig. Main business : onshore oil drilling & extracting equipments and accessories; offshore oil drilling & extracting accessories,Oil Pipes,Carbon Steel Pipes, lighting and explosion proof equipments; special petroleum vehicles; output of petroleum technology & crews, etc