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Material: Variable steel
Machining processes: 25 steps
Investment casting
Turning by CNC lathe
Drilling
Punching/stamping splines
Milling
Zinc-plating
Grinding(ID grinding and OD grinding)
Inspection by special gages
Packaging
Most accurate tolerance for machining: +/-0.008mm
Surface finish: Ra. 0.4 after grinding
Ra1.6-3.2 only by investment casting
Surface finish treatment: Zinc-plating, chrome plating, nickel plating, electro-polishing for stainless steel, duplex steel, 17-4pH steel, mirror polishing for stainless steel etc...
Packaging: Bubble bags+cartons+sea-worthy strong plates.
Connection Nut
