rubber dam specification:600,800.1000,1100,1200,1400,2000,2600 feature:high strength,oil-resistant,anti-abrasive rubber damfunction:used for controlling the ... withstand(m/s)Max. current speed to withstand(Kn)Straight pull speed(Kn)XLGW600600±10210320801.51023XLGW800800±102804501002152.55XLGW10001000±103305101102.52037XLGW12001200±103806051203203 rubber dam