... ProcessCasting, Deburring, Machining, Surface Treatment, Packing. Surface treatmentHigh quality polishing, Chrome/nickek/Zinc(white, blue, yellow, black)plating ... of "lasting improvement and eternal pursuit of quality”, adhering to the concept "only professional, only refined, ... added services, to return new and old customers! Welcome to visit our company! Aluminium Die Casting Parts for Sewing Machine ...