J23W-320P DN25,J23W-320P DN32,外螺纹针型阀 wena针型阀
J43W-16P DN10,J43W-16P DN15,J43W-16P DN20,法兰针型阀 wena针型阀
J23W-160P DN6,J23W-160P DN10,J23W-160P DN15,外螺纹针型阀 wena针型阀
J23W-160P DN20,J23W-160P DN25,J23W-160P DN32
J23W-320P DN25,J23W-320P DN32
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