Pulley and Block are common lifting mechanisms used for rigging and can use with Wire rope or Nylon rope or Chain.
The more wheels you have, and the more times you loop the rope around them, the more you can lift.
The material we use super steel and surface finished is galvanized or painted.
The size is 10″, 12″ and WLL is 4 Ton and 5 Ton for your reference.
Galvanized or Painted
Dia of Rope