Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd. [China]

HEAVY WEIGHT DRILL PIPE ,SPIRAL TYPE ,AS PER API STANDARD ,WITH HARDBANDING

HEAVY WEIGHT DRILL PIPE ,SPIRAL TYPE ,AS PER API  7-1 AND NS-1 STANDARDS ,WITH HARDBANDING ARNCO100XT ,300XT

SPIRAL HEAVY WEIGHT DRILL PIPE