· Oil Casing and Tubing is a important equipment for oil drilling [2016-01-19 HITS：1]
Oil Casing and Tubing is a important equipment for oil drilling, its main equipment also include a core drill pipe, casing, pipe, drill collar and small caliber drilling pipe [READ]

· Spiral steel pipes [2016-01-18 HITS：6]
Spiral steel pipes the diameter is from 219mm to 3500mm and thickness normally from 5 to 30mm [READ]

· The chemical and mechanical properties [2016-01-18 HITS：3]
The chemical and mechanical properties of our seamless steel pipe are those prescribed by current API [READ]

· A pipe fitting is used in pipe plumbing systems to connect straight pipe [2016-01-15 HITS：0]
A steel fitting is used in pipe plumbing systems to connect straight pipe or tubing sections [READ]

· The following make the pipe fitting subdivided [2016-01-15 HITS：0]
The following make the pipe fitting subdivided [READ]

· Test standard of welded pipe and plate scanning method [2016-01-14 HITS：9]
In pipe ultrasonic flaw detection, relative motion of probe and the specimen on the test surface is calledscanning [READ]