On October 9th, Hunan Provincial Federation of Industrial Economics, Hunan Enterprise Confederation ...
Carbon steel pipe is made from ingot or solid round steel after perforation, then though hot rolli...
Submerged arc welding (SAW) is a common arc welding process. SAW is normally operated in the automat...
Large diameter seamless steel pipe is over 1000MM, which is made from steel ingot or solid ...
Casing pipes are manufactured of metal in-house produced and smelted in the electric furnace, t...
The first step to make the seamless pipes is generally started with a hot extrusion to form...
Autumn in October, Hunan Industrial Economic Federation, Fede...
Nowadays, the economic developed very intensive, but the most intense time is the best moment, b...
Autumn in September, the air crisp. Changsha Ruidong 3040 eight league in combat, sponsored by Shine...
If the enterprise want to take the "innovation" as one of the most important cultural concept, we ha...
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