steel price per ton 1.OD:1/2"-54" 2.WT: ... 4. Payment:T/T,L/C best quality and lowest price seamless carbon steel price per tonStandardASTM A106 ,ASTM A53 ,API5L,API5CT , ... ;with FBE internal coating for water steel pipes.MaterialA53(A,B),A106(A,B),Q345,16Mn, 10# 20#,45# S235JR, S355JR ... flow chart of production processOur certificate best quality and lowest price seamless carbon steel price per ton