... 3)Type of end finish: EU, IEU,IU Seamless steel drill pipe API 5D PSL1,API 5CT,API 5L X42 1 ... 4", 4 1/2", 5" 5-1/2"2) Steel Grade: E75, X95, G105, S135 3) Type of end ... external upset, IEU-internal & external upset4) All drill pipe are made according to API 5D SizeNominal massLb/ftCalculated weight ... Trade Co.,Ltd Contact:Selina Skype:hbxsd_selina Seamless steel drill pipe API 5D PSL1,API 5CT,API 5L X42