Welding or brazing for any purpose by any means is prohibited other than that welding is licensed with the attachment of neckrings and footrings which are nonpressure sections, and only on the tops and bottoms of cylinders. (4) As a security precaution, If your maker elects to produce this check https://bar178-link-alternatif80257.total-blog.com/an-unbiased-view-of-bar-178-52391321