The characteristics of rubber impeller

1.Hardness Shore A:75±5
2.Apprearance: No defect
3.Color:black
4.Tensile strength≥20MPa
5.Elongation strength≥250%
6.Tearing permanent deformation:≤6%
7.Rubber elasticity:≥25%
8.Akron:≤0.5cm3
9.Flex cracking:≥10000000times
10.Peel strength requirements: rubber rupture      

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