Brife Introduction
    Spiral steel pipe was made by steel coil, extrusion forming under the normal temperature, take the technology of double wire and double-faced submerged-arc welded.
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)、415NB/MB(X60N/M)、 L450MB(X65)、L485MB(X70)、L555MB(X80)。
Propose:
    Spiral steel pipe was mainly used in public waterworks, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction etc. It is one of the twenty developmental major products of China.
    For liquid transportation: water supply, drain off water, petroleum transportation etc.
    For gas transmission: coal gas, steam, liquefied petroleum gas,gas etc.
    For structure: piling, bridge, wharf,road, architectural structure etc.