... :Silica sol casting Certification:ISO9001-2008 97/23EC Yueqing lianggong Machinery FactoryCasting ProcessPrecision casting,Investment casting,Sand casting,Silica sol castingCasting ... ,Corrosion-resistant steelCasting ApplicationTransport equipment,Mining and MetallurgyEngineering machinery,Medical equipment,Electrical equipment,Food Machinery,Vacuum equipment and other Industrial UntiStandardASTM/DIN ...