... 16Mn,Q345GB6479-200018-530*3-40Fertilizer making equipment and pipe lineLow and mediun pressure boiled pipe10,20GB3087-199910-530* ... black painting anti-corrosionApplication:Natural gas, petroleum, chemical industry, electric power, metallurgy thermodynamic fields, water supply engineering, steam heating, ... Cases or wooden pallet bundle packing, paint on the pipe, plastic covers at the ends or as per ...