J641H进口气动截止阀J641H

J941H进口电动截止阀J941H

API进口美标截止阀API

J45F进口直流式衬氟截止阀J45F

J41F进口直通式衬氟截止阀J41F

JIS进口日标截止阀JIS

J41B进口氨用截止阀J41B

DSJ41H进口法兰水封截止阀DSJ41H

J13W进口内螺纹针型阀J13W

J23W进口外螺纹针型阀J23W

JJY1进口卡套针型阀JJY1

J61Y进口焊接针型阀J61Y