... alloy 60 Series 2.tax(special policy by local gov.) 3.Competitive price,professional aluminium profile PRODUCTION CAPACITY: 30,000 TONS ... PROFILE SURFACE TREATMENT: 1.MILL FINISH 2.ANODIZING 3.SANDING BLASTING 4.POWDER COATING 5.ELECTROPHORESIS 6.WOODEN GRAIN 7.THERMAL BREAK PROFILESPRESS ... ,6061,6060,6082,7075,etc.QUALITY STANDARD:GB/T 5237.4-2004.... Aluminum Sections of GB5237 ...