... , 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: investment ... series.Process: cast, machining, turning, milling, drilling, thread cutting.Surface treatment: glass rays electrolytic polishing, coating, varnishing, bromzing. ...