... customer requirementCasting ProcessingPattern,Casting, Chemical Confirm,Rough Machining,Heat Treatment,MechanicalTesting,Fianal Machining,Polishing,Sand Blasting,Painting, ... ,SUS304Forging ProcessingIngot Checking,Chemical Confirm,Forging,Rough Machining,Heat Treatment,Mechanical Testing,Final Machining,Polishing,Painting,Electro ... ! brass components : pipe coupling/metal rings/machine components