... steel 304, 316 2. mirror polish, high polished 3.Bullet End Plug,forged pipe fittings 1.Material : Stainless steel 304 ... 3162. Surface: mirror polish, high polished3.Name:Bullet End Plug,forged pipe fittings4.specification:7/8'' Casting: ... grinding, polishingAnalysis wet chemically or by x-ray spectrometer. 3-coorcdinate. Computerised numerical. Control measuring ,machining ,pressure inspection ...