... casting Standard:JIS,DIN,ASTM,BS OEM service valve parts made by investment castingwe can offer you Pipe valve parts.If you ... , soluble glass process , silicon process casting4.Weight range: 0.02 to 30kg5.Application: Industrial parts, Machinery parts, hardware, construction parts, valve/valve ... ,polishing,machining,machining center,plating,Heat Treatment,ect. valve parts made by investment casting