China OEM Precision Lost Wax Casting Pneumatic Valves

Zhaoqing olym metal products co., ltd -china oem precision lost wax casting pneumatic valves-we are 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 develped products,with an annual output of 600tons of investment castings production capacity,80% of them were exported to the united states,germany,janpan,spain and other countries.