1.ISO9001:2008 2.OEM service 3.Competitve price We are specializing in manufacturing ... C52100, C54400, etc5. Iron: 1213, 12L14,12156. Aluminum: Al6061, Al60637.OEM according to your requestProducts Availablebolts, screws, nuts, rivets, stem nuts ... according to order qty) 4. Customized size and spec /OEM availablePackagesuitable for sea and air transportation or as requiredCertificateISO9001:2008 ...