... Professional manufatcory with low price and high quality ! Materials: Stainelss steel 304 , 316 , 202 , 201 ,430 . Aluminum 6061 ... ,5052 , Brass , Copper , Cold Rolled Steel , Hot Rolled Steel Size Range: MIN 3.0 X 3.0 mm ... pressure testing, 3-D co-ordinate CMC, metallography, magnetic particle flaw inspection, etc. Package : Carton and Pallet ... make sure 100% good quality. stainless steel stamping part