焊接氨用截止阀J61B-16C,型号有J61B-16C,J61B-25C,J61B-40C,J61B-64C,J61B-100C,J61B-160C,J61B-16P,J61B-25P,J61B-40P,J61B-64P,J61B-100P,J61B-160P,J61B-16R,J61B-25R,J61B-40R,J61B-64R,J61B-100R,J61B-160R,J61B-16RL,J61B-25RL,J61B-40RL,J61B-64RL,J61B-100RL,J61B-160RL,J61N-16C,J61N-25C,J61N-40C,J61N-64C,J61N-100C,J61N-160C,J61N-16P,J61N-25P,J61N-40P,J61N-64P,J61N-100P,J61N-160P,J61N-16R,J61N-25R,J61N-40R,J61N-64R,J61N-100R,J61N-160R,J61N-16RL,J61N-25RL,J61N-40RL,J61N-64RL,J61N-100RL,J61N-160RL,J61F-16C,J61F-25C,J61F-40C,J61F-64C,J61F-100C,J61F-160C,J61F-16P,J61F-25P,J61F-40P,J61F-64P,J61F-100P,J61F-160P,J61F-16R,J61F-25R,J61F-40R,J61F-64R,J61F-100R,J61F-160R,J61F-16RL,J61F-25RL,J61F-40RL,J61F-64RL,J61F-100RL,J61F-160RL,J61B-150LB,J61B-300LB,J61B-600LB,J61B-900LB,J61N-150LB,J61N-300LB,J61N-600LB,J61N-900LB,J61F-150LB,J61F-300LB,J61F-600LB,J61F-900LB.DN15,DN20,DN25,DN32,DN40,DN50,DN65,DN80,DN100,DN125,DN150,DN200,DN250,DN300,DN400,DN450,DN500,DN550,DN600,DN700,DN800等