Type:Boiler and Heat Exchanger Seamless Tube Material Grade:ASTM A179 Size:88.9mm x 5.49mm Surface Treatment: Black Painting/Oil Coating Application: Used in Boiler and Heat Exchanger. Packing: In Bundles Case or as Your Requirement. Payment Terms: TT/LC, West Union, Paypal and O/A. Delivery Time: 7-25 Days after Received the Deposit.