Detailed Product Description 1.Name: investment castings.2.Material: carbon steel, brass, low alloy steel....3.Finish: polishing, powed coating, zinc plating, paiting....4.Heat treatment: annealing, aging, normalizing....5.Standards: follow JIC, SAE, DIN, JIS...6. We are ISO9001:2000 certified.7.we can supply the high quality investment castings as per the customer's drawings or the samples.