Welding or brazing for almost any reason in any respect is prohibited besides that welding is licensed to the attachment of neckrings and footrings that happen to be nonpressure parts, and only to the tops and bottoms of cylinders. (ii) The examination have to be in between parallel metal plates https://situs-bar17888876.blogproducer.com/33376950/helping-the-others-realize-the-advantages-of-bar-178-rtp