Heavy Weight Drill Pipe

Heavy Weight Drill Pipe includes:Welded type,Integral type,
Upset type,Spiral type,Soure Service type,Non-Mag type
API standard: 5DP,7-1 & NS-1
Size:2-7/8" ~6-5/8"
Materials:4145HM,AISl4130,4130M,PNM510/530/550
Lenclth up to 14 meters
Connection:NC,XT, IF,DS,FH,PAC,AOH,H90,SLH90
Additional process:stress relieve groove.cold—rolling of thread
root,make & break,hardbanding and internal plastic coatincl.