... of AOD about 12 tons.So we can control the quality and price.Specifications1:Pipe:201,202,301,304etc2:OD: ... Test :Eddy Current, Hydrostatic Mechanical, Mechanical Test, Chemical Composition Analysis , ISO Quality Management System Certification and MTC(7): Polish:Stain Polish: 60# 80 ... please contact me be free ,we believe our best price ,quality, dilivery time, services will let you be satisfied.I will ...