... to be mounted 3.high recov Spiral Chute -> FRP Spiral Chute -> Details:FRP spiral chute is mainly composed of spiral chute ... , reliable operation and excellent adaptability.Specification of Spiral Chute (FRP Spiral Chute)model5LL-15005LL-12005LL-9005LL-6005LL-400diameter(mm)15001200900600400thread ... mm)540,720900,720,540675,540,405450,360,270240,180ratio(thread pitch/diameter) 0.75,0.6,0.450.75,0 ...