METAL Z PURLIN Metal Purlins – Galvanized Iron Z Purlin Manufacturer Z PURLIN Galvanized Iron ZED Purlin Roof Mounting Structure We “BUDHIA STEEL” are suppliers of Zed Purlin, Z Purlin and C Purlin which is made from premium quality GP coils material. Purlins are a horizontal structural membrane in a roof. It helps in supporting the loads