Oem precision lost wax casting railway parts -zhaoqing olym metal products co., ltd is an oem foundry adopting of advanced sol-wide (colloidal silica)investment casting process, produce castings of various kinds of carbon steel, alloy tool steel, wear-resistant alloy steel, heat-resistant alloy steel and all kinds of stainless steel &it's developed products, with an annual output of 600tons of investment castings production capacity, 80% of them were exported to the united states, germany, japan, spain and other countries.
