Cold Drawn Steel Tube 
Free Cutting Steel Tube 
Precision Seamless Steel Tubes ASTMA519/A106/A500 DIN1629/17121/2391EN10305 JIS3441/3444/3445 
Alloy Steel Tubes for Mechanical Engineering 
Carbon Steel Seamless Pipe 
Steel Pipes Used in Auto Parts 
ASTM A179 Heat-Exchanger And Condenser Tubes Standard Precision Seamless Steel Tubes 
Seamless steel tubes quenching and tempering 
40Cr/41Cr4/28Mn5/37Mn5/5140/40X Alloy Steel Pipe For Hollow Anchor Rod 
Tubes for Hydraulic Cylinders 
