We are Professional supplier for heat exchanger of household and central air-conditioners Product Description Aluminium precoated finstock (blue/white/golden) Alloy: 8011, 1100, 1030B Temper: O or H22, H26 Thickness: 0.09mm--0.2mm Width: 200mm to 1100mm Inner diameter: 76mm,152mm, 200mm Bare fin stock also available and can meet international standard.