... as: immersion oil, lacquer, passivation, phosphating,etc;6) Plastic plugs or caps on both ends as required ;7) Packing Type: Round ... Properties(Ultimate tensile strength,Yield strength,Elongation),Technics Properties(Flattening Test,Flaring Test,Bending Test,Hardness Test,Blow Test,etc), Exterior Size Inspection, Nondestructive Test,Hydrostatic Test;