捷达
U11SM丝口柱塞截止阀
J644H气动角式截止阀
J944H电动高压截止节流阀
J44H水封截止阀
J21H锻钢外螺纹截止阀
J961H电动截止阀
J561Y正齿轮截止阀
J61Y焊接截止阀
J46Y平衡多用阀
J69Y油田阀
J6B5Y油田阀
JHT87Y油田阀