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ningbo,China
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TU 14-3-190 10# Carbon Steel Seamless Pipe Seamless Steel Tubes For Boilers And
13CrMo4-5 Chrome Moly Pipe Alloy Seamless Steel Tubes For Pressure Purposes
TU 14-3-675-78 20# Seamless Steel Tube Carbon Seamless Steel Pipe For Aircraft
GOST 1060-83 10# Cold-Deformed Seamless Steel Tubes For Shipbuilding
GB 150.2 12Cr2Mo1 Seamless Steel Tube Low Alloy Carbon Steel Tubes For Pressure
A789 UNS S31803 Duplex Stainless Steel Pipe Heavy Duty
GB/T8713 Hot Rolled Steel Tube Precision Seamless Type For Shock Absorber
DIN 10220 ST37 High Strength Steel Tube Seamless Precision Steel Tubes For
Hydraulic Lift Seamless Steel Tube Cold Rolled Steel Tube For Car Fittings
GB 18248 Large Diameter Cold Drawn Seamless Steel Tubes For High Pressure Gas
En10216-2 20# Cold Drawn Seamless Steel Tube For High Temperature
ASTM A714 Gr.1 High-Strength Low-Alloy Seamless Steel Pipe For Construction