1.508/610mm paper tube in the middle of coil.
2.Wrapped with plastic film and water proof paper,the packed with steel sheet,then tied by steel strip vertically.
3.protected by inner and outer steel retainer on each side of the coil,then tied by steel strip transversally.
Zinc Aluminium Color Bond Sheets/ plain color bond sheets
GB/T 12754-2006, GB/T 13448-2006, JIS G 3312, ASTM A 653