J61Y-1500LB高温高压焊接截止阀

J11Y-1500LB高温高压内螺纹截止阀

J65Y-1500LB高压直流式截止阀

NJ41H-2500LB自密封高压法兰截止阀

BJ41H-16C高温保温截止阀

BJ45W-16P保温直流式截止阀

J42B-16C角式氨用截止阀

J41B-16C法兰氨用截止阀

DJ61Y-320低温高压截止阀

J41F46全衬氟法兰截止阀

J41H-300LB美标法兰截止阀-美标法兰节流阀

J961Y-320高温高压电动截止阀