Door hinge used on the train1. Investment casting /sand casting/die casting/lost wax casting/precision casting/stainless steel casting/carbon steel casting/CNC machining parts/machinery parts.2. Materials: Carbon steel, alloy steel, stainless steel, grey iron, ductile iron, aluminum, etc.3. Weight: 0.5kg-500kg.4. Surface treatment: Heat treatment, machining, polishing, chrome/zinc/nickel plating5. These parts are used in machine assembly, valve&pump parts, auto&motorcycle parts, train&railway parts, marine hardware, construction hardware, electrical, furniture, etc.6. Standard: AISI, ASTM, DIN, GB, BS, JIS, NF, AAR.7. Quality system certificate: ISO9001: 20008. Your drawings or samples are welcomed.We wil be happy to give you our best price upon receipt of your drawings and detailed requirements.Samples are avalaible for quality check.