1. Product standards:Heat exchanger tube ASTM A210 / ASTM A179 / ASTM A192 /DIN 17175Low temperature pipe ASTM A333 / ASTM A334Precision tube SAE1010 /SAE 1020 / EN 10216 / DIN 2391 / EN 10305Hydraulic tube JIS G3455 STS410(high)/JIS G3454 STPG370(low)Alloy boiler tube ASTM A335 / ASTM A2132. Product specification: O.D.: Ф21.3～Ф610mm(1/2-24in) SCH10,Website:http://www.ausinpipeline.com, SCH20, SCH30, STD, SCH40, SCH60, SCH80, SCH100 SCH120, SCH160, XS, XXSLength: 3～14m 3. Heat treatment:Annealed, Bright annealed, Spheroidize annealed, Normalized, Stress relieved, cold finished, quenched and tempered.4. TestChemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Blow Test, Impact Test),Exterior Size Inspection, Hydrostatic Test, UT test, flux leakage etc.