... delivery time ,good service.6).Material stainless steel ,cold work steel ,Spring steel , martensitic steel,aluminum ,brass, bronze,copper, according ... ;……Specifications of machining parts:(1) Material :Stainless Steel;Al;Alloy(2).High Tolerance :0.01mm(3).Certification ... , coadting,palting.Other specification: STOCK OF COMMONLY USED MATERIALAustenitic Steel SUS303, SUS304 Cold Work SteelDF-2,XW-5 ...