Welding or brazing for almost any reason in any respect is prohibited other than that welding is licensed with the attachment of neckrings and footrings which can be nonpressure sections, and only on the tops and bottoms of cylinders. (2) When the porosity of each and every cylinder will not https://andresnwemt.newsbloger.com/27759574/the-2-minute-rule-for-bar178-slot