API 5L Grade B ERW and Seamless Pipe material supplier in ...
Grade B Pipes are Suitable for Conveying gas, water, oil, and other liquefied media. API 5L Grade B Line Pipe HS Code. 730420 Casing, tubing and Grade B drill pipe, of a kind used in drilling for oil or gas: Casing: 730439 Other Tubes, Grade B Pipes and Hollow Profiles, of Iron or Non-alloy Steel.