Valve rocker arm Investment casting CNC machine center Accuracy CT4 Surface finishes Ra3.2 VALVE ROCKER ARM MANUFACTURE 1.TechnologySilica sol binderLost waxInvestment casting process2.Variety of materialsCarbon steelAlloy steelStainless steelDuctile iron etc.3. StandardsASTM, JISBS, DIN, EN, ISO4. Capacities2,000,000 pieces/Monthor 100Tons/Month5. Field of applicationsTextile & sewing machine ...