RF560%3A%20WIRE%20BLOCK%2C%2020mm%20NYLATRON%20SHEAVESingle%2C%20ferrule%20eye%20head%0D%0ASPECIFICATIONS%0D%0A%0D%0ASheave%20diameter%20(mm)%2020%0D%0AB.L.%20(kg)%20500%0D%0AM.W.L.%20(kg)%20250%0D%0AWeight%20(g)%2020%0D%0A%0D%0APRODUCT%20INFORMATION%0D%0A%0D%0AWire%20blocks%20have%20purpose%20designed%20narrow%20sheaves%20and%20grooves.%0D%0A%0D%0AMATERIALS%0D%0A%0D%0AGrade%20316%20stainless%20steel%20cheeks%0D%0ANylatron%26reg%3B%20sheave