氨用截止阀J21B-25C、J21B-25Z

J61F-25氨用焊接截止阀

J65Y-320高温高压直流式截止阀

双向三通截止阀双向三通截止阀

DL61W-25P低温节流阀

L41B-25C氨用节流阀

DL21W-40T低温直通式节流阀

GL44Y-220C高压角式节流阀

J41B-25P氨用截止阀

JH44F-25截止止回阀

WJ41H-25德标波纹管截止阀

J11H-16C铸钢丝扣截止阀