1.Strain stress of grinding-resistant rubber ≥ 15Pma Wearing-out ≤ 0.45cm3/1.61km
2.Work Pressure 0.8-3.0Mpa
3.Under working status(sand content of substance less than 30%),the floating part out of water surface not less than 30% of the largest tubular outer diameter
4.Regarding to flexural properties, for Model A, the minimized bending radius is πd/4(d denots tubutes inside diameter). |
