... quenched treatment.: all the types from 100 to 250Suitable material for productionC & Z Purlin mainly use hot roll steel strip ... Sheet→Sheet Guiding →Coil Strip Leveling→Roll Forming→Punching for horizontal hole→Punching for vertical hole →Measure Length → Cutting the Panel→ ... on.Applicable Area Door Frame, Rall, Angle, Pallet Rack, Pack Post, Swage Beam Panel,Glass Wool Panel, Hoist Rail, Hand Rail, ...