ドリルパイプトップ企業
-
Hilong Holding Ltd
-
Hunting PLC
-
Trubnaya Metallurgicheskaya Kmpny PAO
-
Tenaris SA
-
National-Oilwell Varco, Inc.
*免責事項:上位企業は順不同
Hilong Holding Ltd
Hunting PLC
Trubnaya Metallurgicheskaya Kmpny PAO
Tenaris SA
National-Oilwell Varco, Inc.
*免責事項:上位企業は順不同