ALLOY STEEL FORGINGS. PROFILES. SEAMLESS. WITH EXTERNAL DIAMETER OF 444.50MM AND 660.40MM. WILL BE FURTHER WORKED AND USED IN THE DOWNHOLE DRILLING INDUSTRY FOR OIL.
ALLOY STEEL FORGINGS. PROFILES. SEAMLESS. WITH EXTERNAL DIAMETER OF 444.50MM AND 660.40MM. WILL BE FURTHER WORKED AND USED IN THE DOWNHOLE DRILLING INDUSTRY FOR OIL.
ALLOY STEEL FORGINGS. PROFILES. SEAMLESS. WITH EXTERNAL DIAMETER OF 444.50MM AND 660.40MM. WILL BE FURTHER WORKED AND USED IN THE DOWNHOLE DRILLING INDUSTRY FOR OIL.
Classification justification
CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. CN CODE 73042990 OTHER: OF AN EXTERNAL DIAMETER EXCEEDING 406.4MM.