... 97/23EC Yueqing lianggong Machinery FactoryCasting ProcessPrecision casting,Investment casting,Sand casting,Silica sol castingCasting MaterialStainless steel,Alloy steel, ... cover,Guide vane,Valve boby,ProcessingHeat treament,Polishing,Sand blasting,Painting, Electrolysis InspectionEquipments Spectrum analysis instrument,Metallurgical ... machine,Projector,Altimeter,Scale Micrometer etc. Mechanical parts