High precision ,good brightness and no oxidize residual substance in inner and outer surface and could withstand high pressure ,no deformation after cold bending , no crack and break after flattening and flaring,with good mechanical property and no deformation after bending at any angle. 1. Bundle packing 2. Pack in heavy tri-wall boxes 3. Plian end or varnished as per buyers requestments 4. Wrapped in waterproof paper 5. Sackcloth with several steel strips
