... 3/8-5 inch API 5DP Drill Pipe/Oilfield Drilling Tools: Grade:DZ50,G105,S135,R780 OD:42 ... 3/8-5 inch API 5DP Drill Pipe/Oilfield Drilling Tools :Grade: DZ50,R780,E75,X95,G105 ... ,S135Material:40Cr,45Mn2,35CrMo,4137HApplication: Drill pipe Technique:Welded Brand ... has the reasonable price in the market. Drill Pipe (E.X.G.S)Size (inch)WeightDesignationCalculated ...