... fittings pipe end fittings. nameswaged/swage nipple male end reducing nipplesize rangeNPS 1/4'' to 12''end preparation square cut/plain end, threaded end, beveled end, grooved end ... connectionbutt-welding for beveled end, socket-welding for square cut / plain end,threaded or groovedtypeconcentric, eccentricstandardMSS SP95materialround or hex bars, seamless pipe ...