... steel,aluminium, brass 2,customized sureface treatment 3,High QC standard 4,OEM service offered We are specializing in ... yellow passivation, gold passivation, galvanizing, satin, etc.Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding and assemblyAdvantages ... 2. Low MOQ 3. Short lead time 4. Customized size and spec /OEM availablePackagesuitable for sea and air ...