Type: Seamless Heat Exchanger Tube. Material Grade: ASTM A213 T11. Manufacture Method: Cold Drawn. Heat Treatment: Normalized. Size: 3 Inch, SCH 80. Surface Treatment: Black Painting /Oiled. Application: For Heat Exchanger. Packing: In Bundles or as Your Requirements. Payment Terms: TT/LC, West Union, Paypal and O/A. Delivery Time: 7-25 Days after Receiving the Deposit.