... certified 2. GB5237 standard 3. OEM and ODM available 4. Substanstial production capacity aluminum railing, railing, aluminum handrail, baluster1. Used ... .2. Surface finish; Powder coating, anodizing, electrophoresis, etc3. Aluminum alloy 6061, 6063, 6063A, etc.4. Temper: T4-T55 ... ODM or OEM.7. Standard: GB52378. Package: each aluminum profile packed by contraction membrance and finally in a pearl ...