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【Process Engineering Division – Pipe and Valve Technology Exchange Forum – Daily Question – Questions 04–14】When aligning pipes, paint, rust, and other contaminants must be removed from the groove surface as well as from the inner and outer walls within a range of 10–15 millimeters, so that a metallic shine is achieved. Judgment: Correct. Note: Questions are valid only on the day they are posed (3 correct answers and 1 incorrect; posts filled with irrelevant content will be deleted). Responding to previous posts on a large scale is considered posting artificially, and such responses will not earn any points or may be awarded points at the discretion of the organizers. The next topic will be updated soon. You can send the question bank related to chemical engineering software (along with answers) to my email address 12315827@qq.com. Once it is included, a reward of 10–100 wealth points will be given depending on the quality and quantity of the questions. If you have a large number of questions, you can contact me via the in-site messaging system; rewards will be provided collectively, and they are not limited to wealth points only. The question bank will serve as the source for the “One Question per Day” section related to chemical engineering software. First come, first served – rewards will be given based on the first email received. Please include the forum username and UID in the email subject.