... X95,G105,S135Material:40Cr,45Mn2,35CrMo,4137HApplication: Drill pipe Technique:Welded Brand Name: LongWayModel Number: ... Drill Tolls Co., Ltd which found in 1996 specially manufactures a series of petroleum drill pipes and joints. Its total asset is ... as follow:1. Longway is a real manufacturer of drill pipes in China and has its ... . Longway has the reasonable price in the market. Drill Pipe (E.X.G.S)Size ...