Subheading 830710: Tubing; Flexible, with or without Fittings, of Iron or Steel
Subheading 830790: Tubing; Flexible, with or without Fittings of Base Metal, other than … etc.
Subheading 830710: Tubing; Flexible, with or without Fittings, of Iron or Steel
Subheading 830790: Tubing; Flexible, with or without Fittings of Base Metal, other than … etc.