Seamless steel pipe
Standard :GB/T8163-1999 GB/T8162-1999 ,ASTM,JIS,DIN,EN
Material:20# ,ST37,Q345B,ST52
Diameter range:89mm-711mm
Wall thickness :4.5mm-20mm
Seamless steel pipe
Standard :GB/T8163-1999 GB/T8162-1999 ,ASTM,JIS,DIN,EN
Material:20# ,ST37,Q345B,ST52
Diameter range:89mm-711mm
Wall thickness :4.5mm-20mm