Welding Outlet Fitting With low price and high quality, favored by domestic and foreign buyers' like. All the products ... reinforce fittings. Outlet is used widely more and more in high temperature large diameter and thick wall pipe. As it is ... ,XS,SCH160,XXSMaterial304,304L,316,316L,321,20# Surface Treatment: Shot blasted, black painting, rust-proof oil, transparent oil, galvanizing,, hot ...