Cargo barges and passenger boats along the River Rhine in Cologne

The video tutorial introduces and emphasizes the LNRJ codes, particularly focusing on LNRJ-161. It begins with an overview of LNRJ-161, LNRJ-122, and LNRJ-137, followed by a repetition of these codes to reinforce learning. The latter part of the video provides a detailed focus on LNRJ-161, highlighting its significance.

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