... steady supplying ability2.excellent quality3.competitive price4.professional service1. Name: C / Z PurlinMaterial:galvanized steel, hot-rolled or cold-rolled ... steel sheet,steel plate(Q235,Q345,SS400,S235JR,S355,etc.)Specification:C Purlin: thickness--1.50mm to 3.00mm; height--100mm to ... )Anyway, for special size, please let me know your specification requirement to see if we can make them.Hole Punch ...