Z and C Purlins have several advantages over conventional hot rolled sections: Light weight sections put minimal load on other structures/supports/foundations. Being factory-finished they minimize wastage and installation time. Optimum sections meet exact design specifications. Very high strength to weight ratio. Cold forming increases yield strength and safety Being supplied in a Pre-Punched condition and cut to sizes Rainbow Purlins facilitates easy erection and minimize wastage/rework at site. In comparison to Painted or Galvanized they are maintenance free.
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Vivek Vihar, Delhi