... ,R780,E75,X95,G105,S135Material:40Cr,45Mn2,35CrMo,4137HApplication: Drill pipe Technique:Welded Brand Name: LongWayModel Number: 42mm-127 ... ,IEUInternal:TC2000,TC3000,TK34About Longway Company:Shijiazhuang LongWay Petroleum Drill Tolls Co., Ltd which found in 1996 specially manufactures a ... lines, adopts to American equipment.3. Longway produces drill pipes strictly meeting API 5DP and ISO 9001.4. ...