The surface quality of the hot rolled coil is easy to control and the quality is high.3% higher than the standard.72mm casing was also used in the Texas oil field in the United States, and the same effect was obtained.7mm […]
The surface quality of the hot rolled coil is easy to control and the quality is high.3% higher than the standard.72mm casing was also used in the Texas oil field in the United States, and the same effect was obtained.7mm […]