... .Depth:15-100mm 4.Lip Width:10-20mm C Steel Beam/c purlin/Steel C Purlin: StandardAISI, ASTM, BS, DIN, GB, JIS, ... or Galvanized C Steel Beam Feature and application : Steel c purlin is hot rolled coil by cold bending processing, thin wall, light weight, high ... .In addition, steel c purlin is can be used in the production of beam and column, arm, etc. in light industry machinery. PaymentItemsL ...