HTS Number	Description	Unit of Quantity	General Rate of Duty	Details
7304 2920.30	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2920.40	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2920.50	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2920.60	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2920.80	Having an outside diameter exceeding 406.4 mm	kg	Free	More
7304 2931	Threaded or coupled		Free
7304 2931.10	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2931.20	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2931.30	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2931.40	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2931.50	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2931.60	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2931.80	Having an outside diameter exceeding 406.4 mm	kg	Free	More
7304 2941	Other		Free
7304 2941.10	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2941.20	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2941.30	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2941.40	Having a wall thickness of 12.7 mm or more	kg	Free	More
7304 2941.50	Having a wall thickness less than 12.7 mm	kg	Free	More
7304 2941.60	Having a wall thickness of 12.7 mm or more	kg	Free	More