... as your requirement. 3.please provide the draw precision casting steel workpiece1.material :different kinds of steel 2. ... the drawing4.standard:international standard.ISO:9015. Process: precision casting & Tooling We would like to provide you all ... steel casting, carbon steel casting, alloy steel casting3. Certificate: DIN, AISI, ASTM, BS, JIS, ect.4. Heat Treatment, polishing, plating, machining, ...