For well drilling Grade: E-75 X-95 G-105 S-135 Size: 2 3/8" 2 7/8" 3 1/2" 4" 4 1/2" 5" 5 1/2"" Out diameters from 25mm to 325mm Wall thickness from 4mm to 28mm Packing in bundles Surface: Varnish coating Ends: Beveled or square cut, Plastic capped Mill Test Certificate En10204/3.1 Payment: 30%T/T in advance against the copy of B/L or 100% Irrevocable L/C at sight Delivery: FOB/CFR/CIF Delievry Lead Time: Within 45 days after the receipt of L/C or T/T Minimun order: 10 tons according to the specified size and grade