Big Dimension: outer-diameter:ф80
Thin Wall: the thinnest wall thickness:0.5
Dimension tolerance: φ72.5(0/+0.019)
Roundness: 0.015(φ72.5)
Thin Wall: the thinnest wall thickness:0.5
Dimension tolerance: φ72.5(0/+0.019)
Roundness: 0.015(φ72.5)
Shine and Color：bright, semi-bright black, sand surface with white or black. Suitable material:5A05、6061、2A12 and so on.
Dimension control during oxidation： black oxidation directly add 3-6μm； black oxidation with extinction add 3-6μm； sand surface black oxidation ±10 μm; die-cast parts black oxidation add1-3μm；
Temperature without color different ＜200℃
Time with ultraviolet radiation tolerant：＞ 100H
Time for salt mist test ：＞200H
Big dimension: outer-diameter:ф70.5xф67.8
Thin wall ring type frame, less intensity.
Milling out circle and surface, easily lead to part deforming.
Anodizing and easily lead to part deforming
Dimension tolerance:0.019
Roundness: 0.019
Thin wall ring type frame, less intensity.
Milling out circle and surface, easily lead to part deforming.
Anodizing and easily lead to part deforming
Dimension tolerance:0.019
Roundness: 0.019
Material:Chinese A5056 pipe；
Structure:length 101，18 pieces of curves，Wall Thickness 2.3；the curve cam with the most curve grooves amount.
Curve Groove:width changing amount 0.01，curve groove same height 0.01，position deviation ±3′
Roughness Ra0.3，Roundness 0.01
Measuring:check the curve groove direct， groove position ±3′ is hard to measure
Structure:length 101，18 pieces of curves，Wall Thickness 2.3；the curve cam with the most curve grooves amount.
Curve Groove:width changing amount 0.01，curve groove same height 0.01，position deviation ±3′
Roughness Ra0.3，Roundness 0.01
Measuring:check the curve groove direct， groove position ±3′ is hard to measure
