Introduction:Spiral steel pipes are made from strip steel coils, formed through cold rolling, and焊接 using the automatic double-sided submerged arc welding process with twin wires.

Material: Q235A，Q235B、10#、20#、Q345（16Mn）、L245(B)、L290（X42）、L320（X46）、L360（X52）、L390(X56)、L415(X60)、 L450(X65)、L485(X70)、L555(X80)、L290NB/MB（X42N/M）、L360NB/MB（X52N/M）、L390NB/MB(X56N/M)、L415NB/MB(X60N/M)、L450MB(X65)、L485MB(X70)、L555MB(X80)。

Usage:Spiral steel pipes are primarily used in water supply projects, petrochemical industry, chemical industry, electricity industry, agricultural irrigation, and urban construction. They are among the top 20 key products developed in China.

For liquid conveyance: water supply, drainage, oil transportation.

For gas conveyance: Coal gas, steam.

For structural use: pile pipes, bridges, docks, roads, and tubes for building structures.