· Welding three way valve production process [2015-06-27 HITS：17]
China oil news network (reporter correspondent Chen Tao) September 30th, by national oil pipe for quality supervision and inspection center and oil industry oil field perforators quality supervision and inspection center detection ... [READ]

· Carbon steel flange connection, quality assurance [2015-06-27 HITS：22]
Oil casing has played an important role in the operation of oil well. They can protect the drilling from shallow water and shallow gas pollution, can also support the oil, gas, oil, gas transmission and drilling. Support the ... [READ]

· Characteristics of stainless steel stamping elbow pipe [2015-06-27 HITS：21]
Petroleum casing pipe is the pipe production of high-end products, among several kinds of casing, casing diameter range of specifications with a total of 15 kinds of specifications, the diameter range of 114.3-508mm; steel grade... [READ]

· Hebei Shengtian pipe fittings group to introduce to you the elbows [2015-06-27 HITS：17]
Review of abrasion resistance Industrial elbow wear has been a factor in a safe and civilized production, with the continuous development of science and technology, innovation of materials appeared cast stone, cast steel, alloy,... [READ]