Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.'s square and rectangular welded steel pipe products passed the Metallurgical Industry Planning Institute's professional sampling inspection as well as strict inspection and supervision, earning the AAAAA product certification.Tia
Learn More
Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after being crimped and welded. Generally, the length is 6 meters. The production process of welded steel pipe is simple, the production efficiency is high, there are many varieties and specifications, a
Learn More
The production process of large-diameter welded pipe is mainly divided into the following types:1. Large-diameter spiral steel pipe, also known as (large-diameter spiral welded pipe, large-diameter submerged arc welded spiral pipe, large-diameter spiral pipe, or double-sided submerged arc welded spi
Learn More
Galvanized steel pipes can be welded, but the galvanized layer at the weld must be polished off, otherwise, air bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce rigidity.Welding characteristics of galvanized steel pipe:Galvanized steel pipes are genera
Learn More
TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD
