... /8"-6 5/8" 2.Grade:E,X,G,S 3. ... ,150XT,300XT, Botn1000,3000 5.IPC:TC2000,TK34 For more than 40 years, we've been exploring ... various oil drilling tools including Drill Pipe, Drill Collar, Heavy Weight Drill Pipe, Kelly,Pup Joint and so on ... . Our API drill pipes are of high physical property, for ... 18001, Arnco Hardbanding Certificates and so on. 2 3/8--5 1/2 drill pipe