... , Copper, Titanium, Iron, Nylon, or according to customers' requirements .Q4.What finishes can you provide? A: Polishing, electro polishing, powder coated ... painting, anodized, passivation, brush, sandblasting, etc.Q5.How do you ensure quality control? A: We inspect every process based on ... they can deliver the goods to you in very short time with competitive price, and you can ship by your own agent ...