1. Size: 1/8"~4" 2. Standard: asme b16.11 mss sp 79/83/95/97, en10241 3. Certification: iso 9001:2008/ce Product name Female male npt threaded hexagon bush Material Carbon steel a105/stainless steel 304/304l/316/316l Color Raw color/back painting Standard Asme b16.11 mss sp 79/83/95/97, en10241 Product category Elbow, tee, coupling, halcoupling, cap, plug, bushing, union, Outlet, swage nipple, bull plug, reducer insert and hex Nipple, street elbows, boss...Etc forged pipe fittings. Pressure 2000/3000/6000/ lbs Connection Threaded bspp/bspt/npt and socket-weld(sw) or butt-weld Used Gas/petroleum/power/connect pipes