Daqing Petroleum Equipment Group ,'cover',1,'introduction',2,'structure ',4,'equipment',5,'measurement and control',8,'research & development',9,'qualifications',10,'pumping unit',11,'DQG5250 TSN cementing truck',14,'ZK series vacuum-calefaction stove',15,'transverse flow oil-sewage separator',16,'sucker rod pump and petroleum machinery products',17,'wellhead assembly',18,'special-purpose automobile',19,'founding',21,'drilling equipment',22,'founding',23,'drilling equipment',24,'tubing',25,'rubber products',26,'special-purpose automobile',27,'pumping unit',29,'contact',30