Commodity: Carbon steel seamless steel pipe 

Size: 15-323.9x 1.5-15mm 
(More detailed sizes, please see our E-Catalog. ) 

Surface: Smooth, oiled/unoiled 

Packing: Plain end, with protection caps in both ends 

Usage: Structural construction, bus-building, carrying liquidation, etc 

Standard adopted: Chinese Standard GB/T8162-1999, GB/T8163-1999 
DIN 1626, DIN1629 

Steel grade: 10#, 20#, 45# 16Mn, St35, St37, St52 

Equivalent standard: JIS G 3454 STPG 370, DIN1629 St. 37, ASTM A53