· The material OF Q345 [2016-08-01 HITS：3]
​The material difference of Q345A, Q345B, Q345C, Q345D and Q345E [READ]

· oil casing steel [2016-07-30 HITS：1]
​Oil casing steel grade: H40, J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. [READ]

· steel pipe casing steel pipes [2016-07-28 HITS：0]
Oil casing is a steel pipe that used to support the oil and gas well wall, to ensure that the drilling process and after the completion of the normal operation of the entire oil well. Each well according to different drilling depth and geological conditio [READ]

· cold and hot rolled PIPE [2016-07-27 HITS：8]
General speaking seamless steel pipe production process can be divided into cold and hot rolled. [READ]

· API 5L PLS1 and PLS2 COMPARE [2016-07-26 HITS：19]
API 5L PLS1 and PLS2 COMPARE [READ]

· Seamless steel pipe prices [2016-07-25 HITS：9]
Seamless steel pipe prices is increasing once again. [READ]