Cold-rolled seamless steel pipes are often of small diameter, and hot-rolled seamless steel pipes are often of large diameter. The accuracy of cold-rolled seamless steel pipe is higher than that of...
On the morning of October 26, Shaanxi Youfa held its opening ceremony, which marked the official production of a steel pipe project with an annual output of 3 million tons. At the same time, Shaanx...
On April 9, the Secretary of Hedong District Party committee, district head, member of the Standing Committee of the district Party committee and vice chairman of the district CPPCC visited Youfa g...