... ~ 168.3mm Grade: E75,X95,G105,S135 Application: Drill Pipe Drill pipes are steel tubes with threaded ends that are ... are thickened by a process called "upsetting" through which a pipe’s exterior surface is pushed inward. Next, the pipes ... 5633.575.5139.70.41510.54E, X, G, SIEU6 5/825.222.2133.046.625168.30.338.38E, X, G ... , SIEU6 5/827.7224.2436.066.625168.30.3629.19E, X, G ...