| 摘要 |
PROBLEM TO BE SOLVED: To provide a branched stainless steel tube of high reliability in which any high skill of a welding technology is not required, a manufacturing method thereof, and a branched stainless steel tube application method in which the application of the stainless steel tube at a construction site is possible. SOLUTION: In the branched part of the branched stainless steel tube having flow passages of at least three directions, the branched tube is formed of stainless steel, at least one end part thereof has a flanged part, a main tube is formed of stainless steel, and has a hole having substantially the same shape and substantially the same dimension as those of the external shape of the flanged part formed in an outer circumferential sidewall thereof. The flanged part of the branched tube is fitted in the hole, and the outer edge of the flanged part and the circumferential edge of the hole are joined with each other by butt-welding. |
