The product is made from ordinary carbon structured steels via cold-rolled,electric heat and blue.It is applicable for bunding and packing of wood ,paper,cotton spinning,chemical industry machinery and so on.Tensile strength ?b>60kg/mm (MPa)>=600,elongation ?5>=3%.(weight/unit)2or3 small coils per bundle,net weight 50±2kg.(packing) 2 or 3 small coil per bundle,inner diameter is 200-300mm.packing:1.inner is protect humidity-proof wax paper.Meddium is plastic film.Outer is sackcloth packing.2.inner and outer are tile edge compound paper packing.The cargo will be delivered in pallets.Each pallet is about one metric ton.Besides the above sizes,other particular specifications,properties,and packing can also be manufactured as per customers orders.