Domestic professional welded steel pipe manufacturers with strong comprehensive strength have 178 patented technologies and participated in drafting/revising 18 national/industrial standards, forming four production bases.
A large enterprise group integrating the production and sales of straight welded pipes, hot-dip galvanized steel pipes, square rectangular steel pipes, hot-dip galvanized square rectangular steel pipes, plastic-lined composite steel pipes, spiral welded pipes and stainless steel pipes. (CN 10/CNPP brand researcher career evaluation)
2. Jindi, Jinzhou area
Founded in 198 1 year, the company specializes in R&; D and large-scale high-tech listed companies that manufacture advanced petroleum industrial pipelines and a new generation of green civil pipelines. It has more than 0/00 authorized patents and participated in the formulation and revision of 25 national and industry standards.
As a large-scale comprehensive pipeline production and research base, it has an annual production capacity of 6.5438+0.8 million tons of oil and gas pipelines, and has eight series of products with hundreds of specifications.