... Nikel, Chrome, Tin, Ag); Painting, Powder, Anodizing, E-coating, Silkscreen, Heat treatment, Black oxid; 3) producing scope: cnc ,Laser cutting ,metal ... , Precision wire cutting machines, more than 160 sets in total;2) Standard/ specification: OEM service as per customers' requests, with in-house ... packaging method according to customer's requirement sheet metal heat sink with black powder coated