WJ4C1HC-16德标波纹管截止阀

RJ4C1HC-150美标法兰截止阀

RJ4C2HC-150锻钢法兰截止阀

RJ4C1HC-16法兰截止阀

RJ1P1WP-200内螺纹截止阀

RJ1C2HC-150锻钢内螺纹截止阀

JY4P1YP-16氧气截止阀

RJ11H-16T黄铜丝口截止阀

RJ11W-16T青铜丝口截止阀

BJ4C1HC-16保温截止阀

SJ6C1HC-16水封截止阀