Type: Seamless Steel Pipe. Material Grade: API 5CT K55. Size: 42.2mm x 6.35mm. Surface Treatment: Black Painting. Application: For Oil Industry, etc Packing: In Bundles with Steel Strips or as Your Requirements. Payment Terms: TT/LC, West Union, Paypal and O/A. Delivery Time: 7-25 Days after Receiving the Deposit.