20 pieces of Seamless steel pipe DN80 in A106 GR.B, length 5.8m20 pieces of Seamless steel pipe DN100 in A106 GR.B, length 5.8m20 pieces of Seamless steel pipe DN150 in A106 GR.B, length 5.8m20 pieces of Seamless steel pipe DN200 in A106 GR.B, length 5.8m