Drilling toolluhai provides all type of drill pipes, include oil drill pipe, water wellgeothermal well drill pipe, coalbed methaneshale gas drill pipe and flush joint drill pipe, also various kind of tool joints.Description & specification:size: full range from 2-38to 6-58grade: e75, x95 , g105 and s135upset type: eu, iu and ieu.Connection: from nc26 to nc50, 5-12fh and 6-58fhstandard: api spec 5dp, api spec7-1, api rp 7g.